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72616345370361 = 32132390787297233
BaseRepresentation
bin10000100000101101001111…
…011110000111111011111001
3100112010001110222000112010100
4100200231033132013323321
534004221233403322421
6414235253304510013
721203233506242112
oct2040551736077371
9315101428015110
1072616345370361
1121157467948151
12818964b17b309
1331698cc3a6650
1413d0915351209
1585ddb7808c26
hex420b4f787ef9

72616345370361 has 48 divisors (see below), whose sum is σ = 117871704752256. Its totient is φ = 42743454893568.

The previous prime is 72616345370293. The next prime is 72616345370377. The reversal of 72616345370361 is 16307354361627.

It is a happy number.

72616345370361 is a `hidden beast` number, since 7 + 2 + 6 + 1 + 63 + 453 + 70 + 3 + 61 = 666.

It is not a de Polignac number, because 72616345370361 - 214 = 72616345353977 is a prime.

It is a super-2 number, since 2×726163453703612 (a number of 29 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 72616345370298 and 72616345370307.

It is not an unprimeable number, because it can be changed into a prime (72616345370461) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 244159201 + ... + 244456433.

It is an arithmetic number, because the mean of its divisors is an integer number (2455660515672).

Almost surely, 272616345370361 is an apocalyptic number.

It is an amenable number.

72616345370361 is a deficient number, since it is larger than the sum of its proper divisors (45255359381895).

72616345370361 is a wasteful number, since it uses less digits than its factorization.

72616345370361 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 388062 (or 388059 counting only the distinct ones).

The product of its (nonzero) digits is 11430720, while the sum is 54.

The spelling of 72616345370361 in words is "seventy-two trillion, six hundred sixteen billion, three hundred forty-five million, three hundred seventy thousand, three hundred sixty-one".

Divisors: 1 3 9 13 23 39 69 117 207 299 897 2691 90787 272361 297233 817083 891699 1180231 2088101 2675097 3540693 3864029 6264303 6836359 10622079 11592087 18792909 20509077 27145313 34776261 61527231 81435939 88872667 244307817 266618001 799854003 26984892371 80954677113 242864031339 350803600823 620652524533 1052410802469 1861957573599 3157232407407 5585872720797 8068482818929 24205448456787 72616345370361