56776616602266 has 64 divisors (see below), whose sum is σ = 124627785371136. Its totient is φ = 17100871502400.

The previous prime is 56776616602201. The next prime is 56776616602271. The reversal of 56776616602266 is 66220661667765.

It is a Harshad number since it is a multiple of its sum of digits (66).

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 56776616602197 and 56776616602206.

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, 7849101 + ... + 13234863.

It is an arithmetic number, because the mean of its divisors is an integer number (1947309146424).

Almost surely, 2^{56776616602266} is an apocalyptic number.

56776616602266 is an abundant number, since it is smaller than the sum of its proper divisors (67851168768870).

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

56776616602266 is a wasteful number, since it uses less digits than its factorization.

56776616602266 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5386747.

The product of its (nonzero) digits is 274337280, while the sum is 66.

The spelling of 56776616602266 in words is "fifty-six trillion, seven hundred seventy-six billion, six hundred sixteen million, six hundred two thousand, two hundred sixty-six".