56663266236664 has 32 divisors (see below), whose sum is σ = 108063253544400. Its totient is φ = 27848233163520.

The previous prime is 56663266236659. The next prime is 56663266236691. The reversal of 56663266236664 is 46663266236665.

It is a Harshad number since it is a multiple of its sum of digits (67).

It is a self number, because there is not a number n which added to its sum of digits gives 56663266236664.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 114411309 + ... + 114905500.

Almost surely, 2^{56663266236664} is an apocalyptic number.

It is an amenable number.

56663266236664 is a deficient number, since it is larger than the sum of its proper divisors (51399987307736).

56663266236664 is a wasteful number, since it uses less digits than its factorization.

56663266236664 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 229317343 (or 229317339 counting only the distinct ones).

The product of its digits is 1209323520, while the sum is 67.

Subtracting from 56663266236664 its reverse (46663266236665), we obtain a palindrome (9999999999999).

The spelling of 56663266236664 in words is "fifty-six trillion, six hundred sixty-three billion, two hundred sixty-six million, two hundred thirty-six thousand, six hundred sixty-four".