56665517021006 has 64 divisors (see below), whose sum is σ = 90566408344320. Its totient is φ = 26498368512000.

The previous prime is 56665517020961. The next prime is 56665517021033. The reversal of 56665517021006 is 60012071556665.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 6145263476 + ... + 6145272696.

It is an arithmetic number, because the mean of its divisors is an integer number (1415100130380).

Almost surely, 2^{56665517021006} is an apocalyptic number.

56665517021006 is a deficient number, since it is larger than the sum of its proper divisors (33900891323314).

56665517021006 is a wasteful number, since it uses less digits than its factorization.

56665517021006 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11181.

The product of its (nonzero) digits is 2268000, while the sum is 50.

The spelling of 56665517021006 in words is "fifty-six trillion, six hundred sixty-five billion, five hundred seventeen million, twenty-one thousand, six".