56000666061 has 32 divisors (see below), whose sum is σ = 83814432000. Its totient is φ = 36951453504.

The previous prime is 56000666047. The next prime is 56000666107. The reversal of 56000666061 is 16066600065.

It is not a de Polignac number, because 56000666061 - 2⁷ = 56000665933 is a prime.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (56000666011) by changing a digit.

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 31 ways as a sum of consecutive naturals, for example, 6639595 + ... + 6648023.

It is an arithmetic number, because the mean of its divisors is an integer number (2619201000).

Almost surely, 2^56000666061 is an apocalyptic number.

It is an amenable number.

56000666061 is a deficient number, since it is larger than the sum of its proper divisors (27813765939).

56000666061 is a wasteful number, since it uses less digits than its factorization.

56000666061 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10930 (or 10924 counting only the distinct ones).

The product of its (nonzero) digits is 38880, while the sum is 36.

The spelling of 56000666061 in words is "fifty-six billion, six hundred sixty-six thousand, sixty-one".