56566001028 has 48 divisors (see below), whose sum is σ = 136368167936. Its totient is φ = 18238016160.

The previous prime is 56566000999. The next prime is 56566001047. The reversal of 56566001028 is 82010066565.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 479008 + ... + 585303.

Almost surely, 2^56566001028 is an apocalyptic number.

It is an amenable number.

56566001028 is an abundant number, since it is smaller than the sum of its proper divisors (79802166908).

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

56566001028 is a wasteful number, since it uses less digits than its factorization.

56566001028 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1064464 (or 1064462 counting only the distinct ones).

The product of its (nonzero) digits is 86400, while the sum is 39.

The spelling of 56566001028 in words is "fifty-six billion, five hundred sixty-six million, one thousand, twenty-eight".