56163616572 has 48 divisors (see below), whose sum is σ = 149784590592. Its totient is φ = 16045146240.

The previous prime is 56163616543. The next prime is 56163616583. The reversal of 56163616572 is 27561636165.

It is a Smith number, since the sum of its digits (48) coincides with the sum of the digits of its prime factors.

It is a congruent number.

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 15 ways as a sum of consecutive naturals, for example, 1004383 + ... + 1058825.

It is an arithmetic number, because the mean of its divisors is an integer number (3120512304).

Almost surely, 2^56163616572 is an apocalyptic number.

It is an amenable number.

56163616572 is an abundant number, since it is smaller than the sum of its proper divisors (93620974020).

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

56163616572 is a wasteful number, since it uses less digits than its factorization.

56163616572 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 66738 (or 66736 counting only the distinct ones).

The product of its digits is 1360800, while the sum is 48.

The spelling of 56163616572 in words is "fifty-six billion, one hundred sixty-three million, six hundred sixteen thousand, five hundred seventy-two".