539509627655656 has 32 divisors (see below), whose sum is σ = 1216939009752000. Its totient is φ = 219049021754496.

The previous prime is 539509627655587. The next prime is 539509627655723. The reversal of 539509627655656 is 656556726905935.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 253528959301 + ... + 253528961428.

It is an arithmetic number, because the mean of its divisors is an integer number (38029344054750).

Almost surely, 2^{539509627655656} is an apocalyptic number.

539509627655656 is a gapful number since it is divisible by the number (56) formed by its first and last digit.

It is an amenable number.

539509627655656 is an abundant number, since it is smaller than the sum of its proper divisors (677429382096344).

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

539509627655656 is a wasteful number, since it uses less digits than its factorization.

539509627655656 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 507057920761 (or 507057920757 counting only the distinct ones).

The product of its (nonzero) digits is 13778100000, while the sum is 79.

The spelling of 539509627655656 in words is "five hundred thirty-nine trillion, five hundred nine billion, six hundred twenty-seven million, six hundred fifty-five thousand, six hundred fifty-six".