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68165369101 = 2937593313253
BaseRepresentation
bin111111011110111110…
…001111110100001101
320111221120011112102001
4333132332033310031
52104100313302401
651151552232301
74632126035344
oct773676176415
9214846145361
1068165369101
11269aa634795
121126453b691
13657432083b
1434290c6b5b
151b8e516601
hexfdef8fd0d

68165369101 has 32 divisors (see below), whose sum is σ = 73894435200. Its totient is φ = 62741226240.

The previous prime is 68165369093. The next prime is 68165369117. The reversal of 68165369101 is 10196356186.

It is not a de Polignac number, because 68165369101 - 23 = 68165369093 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (68165369161) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 20952991 + ... + 20956243.

It is an arithmetic number, because the mean of its divisors is an integer number (2309201100).

Almost surely, 268165369101 is an apocalyptic number.

It is an amenable number.

68165369101 is a deficient number, since it is larger than the sum of its proper divisors (5729066099).

68165369101 is a wasteful number, since it uses less digits than its factorization.

68165369101 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3709.

The product of its (nonzero) digits is 233280, while the sum is 46.

The spelling of 68165369101 in words is "sixty-eight billion, one hundred sixty-five million, three hundred sixty-nine thousand, one hundred one".

Divisors: 1 29 37 59 331 1073 1711 2183 3253 9599 12247 19529 63307 94337 120361 191927 355163 566341 722573 1076743 3490469 5565883 7101299 20954617 31225547 39839491 63527837 205937671 1155345239 1842307273 2350529969 68165369101