56766600928451 has 2 divisors, whose sum is σ = 56766600928452. Its totient is φ = 56766600928450.

The previous prime is 56766600928421. The next prime is 56766600928483. The reversal of 56766600928451 is 15482900666765.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 56766600928451 - 2²² = 56766596734147 is a prime.

It is not a weakly prime, because it can be changed into another prime (56766600928421) 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 as a sum of consecutive naturals, namely, 28383300464225 + 28383300464226.

It is an arithmetic number, because the mean of its divisors is an integer number (28383300464226).

Almost surely, 2^{56766600928451} is an apocalyptic number.

56766600928451 is a deficient number, since it is larger than the sum of its proper divisors (1).

56766600928451 is an equidigital number, since it uses as much as digits as its factorization.

56766600928451 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 130636800, while the sum is 65.

The spelling of 56766600928451 in words is "fifty-six trillion, seven hundred sixty-six billion, six hundred million, nine hundred twenty-eight thousand, four hundred fifty-one".