556023278028 has 12 divisors (see below), whose sum is σ = 1297387648760. Its totient is φ = 185341092672.

The previous prime is 556023277981. The next prime is 556023278089. The reversal of 556023278028 is 820872320655.

It is a tau number, because it is divible by the number of its divisors (12).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 23167636573 + ... + 23167636596.

Almost surely, 2^556023278028 is an apocalyptic number.

It is an amenable number.

556023278028 is an abundant number, since it is smaller than the sum of its proper divisors (741364370732).

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

556023278028 is a wasteful number, since it uses less digits than its factorization.

556023278028 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 46335273176 (or 46335273174 counting only the distinct ones).

The product of its (nonzero) digits is 1612800, while the sum is 48.

The spelling of 556023278028 in words is "five hundred fifty-six billion, twenty-three million, two hundred seventy-eight thousand, twenty-eight".