56664064212 has 48 divisors (see below), whose sum is σ = 153665272320. Its totient is φ = 15915328992.

The previous prime is 56664064207. The next prime is 56664064229. The reversal of 56664064212 is 21246046665.

It is a Harshad number since it is a multiple of its sum of digits (42).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 5711758 + ... + 5721669.

It is an arithmetic number, because the mean of its divisors is an integer number (3201359840).

Almost surely, 2^56664064212 is an apocalyptic number.

It is an amenable number.

56664064212 is an abundant number, since it is smaller than the sum of its proper divisors (97001208108).

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

56664064212 is a wasteful number, since it uses less digits than its factorization.

56664064212 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11433500 (or 11433498 counting only the distinct ones).

The product of its (nonzero) digits is 414720, while the sum is 42.

The spelling of 56664064212 in words is "fifty-six billion, six hundred sixty-four million, sixty-four thousand, two hundred twelve".