185288538656 has 48 divisors (see below), whose sum is σ = 397580508864. Its totient is φ = 84487436544.

The previous prime is 185288538629. The next prime is 185288538667. The reversal of 185288538656 is 656835882581.

It is a junction number, because it is equal to n+sod(n) for n = 185288538592 and 185288538601.

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, 2648636 + ... + 2717691.

It is an arithmetic number, because the mean of its divisors is an integer number (8282927268).

Almost surely, 2^185288538656 is an apocalyptic number.

185288538656 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

It is an amenable number.

185288538656 is an abundant number, since it is smaller than the sum of its proper divisors (212291970208).

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

185288538656 is a wasteful number, since it uses less digits than its factorization.

185288538656 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5366433 (or 5366425 counting only the distinct ones).

The product of its digits is 110592000, while the sum is 65.

The spelling of 185288538656 in words is "one hundred eighty-five billion, two hundred eighty-eight million, five hundred thirty-eight thousand, six hundred fifty-six".