56654633645665 has 16 divisors (see below), whose sum is σ = 75565425600576. Its totient is φ = 40425947848000.

The previous prime is 56654633645567. The next prime is 56654633645669.

56654633645665 is nontrivially palindromic in base 10.

56654633645665 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 56654633645665 - 2¹⁷ = 56654633514593 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 56654633645594 and 56654633645603.

It is not an unprimeable number, because it can be changed into a prime (56654633645669) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 9717773011 + ... + 9717778840.

It is an arithmetic number, because the mean of its divisors is an integer number (4722839100036).

Almost surely, 2^{56654633645665} is an apocalyptic number.

56654633645665 is a gapful number since it is divisible by the number (55) formed by its first and last digit.

It is an amenable number.

56654633645665 is a deficient number, since it is larger than the sum of its proper divisors (18910791954911).

56654633645665 is a wasteful number, since it uses less digits than its factorization.

56654633645665 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19435551920.

The product of its digits is 4199040000, while the sum is 70.

The spelling of 56654633645665 in words is "fifty-six trillion, six hundred fifty-four billion, six hundred thirty-three million, six hundred forty-five thousand, six hundred sixty-five".