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61330789891160 = 2354493414854671
BaseRepresentation
bin11011111000111101011111…
…11100011111110001011000
322001011011111012100111112122
431330132233330133301120
531014320424203004120
6334234550444200412
715630001101400466
oct1574365774376130
9261134435314478
1061330789891160
11185a6273004239
126a66399539108
13282b61289162a
1411205d71c3836
1571554bb2da25
hex37c7aff1fc58

61330789891160 has 32 divisors (see below), whose sum is σ = 138301614216000. Its totient is φ = 24477678274560.

The previous prime is 61330789891127. The next prime is 61330789891169. The reversal of 61330789891160 is 6119898703316.

It is a super-2 number, since 2×613307898911602 (a number of 28 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 61330789891093 and 61330789891102.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (61330789891169) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1707409376 + ... + 1707445295.

It is an arithmetic number, because the mean of its divisors is an integer number (4321925444250).

Almost surely, 261330789891160 is an apocalyptic number.

It is an amenable number.

61330789891160 is an abundant number, since it is smaller than the sum of its proper divisors (76970824324840).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

61330789891160 is a wasteful number, since it uses less digits than its factorization.

61330789891160 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3414855131 (or 3414855127 counting only the distinct ones).

The product of its (nonzero) digits is 11757312, while the sum is 62.

The spelling of 61330789891160 in words is "sixty-one trillion, three hundred thirty billion, seven hundred eighty-nine million, eight hundred ninety-one thousand, one hundred sixty".

Divisors: 1 2 4 5 8 10 20 40 449 898 1796 2245 3592 4490 8980 17960 3414854671 6829709342 13659418684 17074273355 27318837368 34148546710 68297093420 136594186840 1533269747279 3066539494558 6133078989116 7666348736395 12266157978232 15332697472790 30665394945580 61330789891160