6157172660 has 12 divisors (see below), whose sum is σ = 12930062628. Its totient is φ = 2462869056.

The previous prime is 6157172639. The next prime is 6157172669. The reversal of 6157172660 is 662717516.

It can be written as a sum of positive squares in 2 ways, for example, as 2645662096 + 3511510564 = 51436^2 + 59258^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6157172669) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 153929297 + ... + 153929336.

It is an arithmetic number, because the mean of its divisors is an integer number (1077505219).

Almost surely, 2^6157172660 is an apocalyptic number.

It is an amenable number.

6157172660 is an abundant number, since it is smaller than the sum of its proper divisors (6772889968).

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

6157172660 is a wasteful number, since it uses less digits than its factorization.

6157172660 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 307858642 (or 307858640 counting only the distinct ones).

The product of its (nonzero) digits is 105840, while the sum is 41.

The square root of 6157172660 is about 78467.6535905082. The cubic root of 6157172660 is about 1832.8507887784.

The spelling of 6157172660 in words is "six billion, one hundred fifty-seven million, one hundred seventy-two thousand, six hundred sixty".