656115151560 has 128 divisors (see below), whose sum is σ = 2240646312960. Its totient is φ = 152142636800.

The previous prime is 656115151541. The next prime is 656115151561. The reversal of 656115151560 is 65151511656.

It is not an unprimeable number, because it can be changed into a prime (656115151561) 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, 10775226 + ... + 10835945.

It is an arithmetic number, because the mean of its divisors is an integer number (17505049320).

Almost surely, 2^656115151560 is an apocalyptic number.

656115151560 is a gapful number since it is divisible by the number (60) formed by its first and last digit.

It is an amenable number.

656115151560 is an abundant number, since it is smaller than the sum of its proper divisors (1584531161400).

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

656115151560 is a wasteful number, since it uses less digits than its factorization.

656115151560 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21611219 (or 21611215 counting only the distinct ones).

The product of its (nonzero) digits is 135000, while the sum is 42.

The spelling of 656115151560 in words is "six hundred fifty-six billion, one hundred fifteen million, one hundred fifty-one thousand, five hundred sixty".