56650666605665 has 32 divisors (see below), whose sum is σ = 74911485906432. Its totient is φ = 40783655520000.

The previous prime is 56650666605661. The next prime is 56650666605727.

56650666605665 is nontrivially palindromic in base 10.

56650666605665 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 56650666605665 - 2² = 56650666605661 is a prime.

It is a super-2 number, since 2×56650666605665² (a number of 28 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 56650666605595 and 56650666605604.

It is not an unprimeable number, because it can be changed into a prime (56650666605661) 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 31 ways as a sum of consecutive naturals, for example, 24392339 + ... + 26613671.

It is an arithmetic number, because the mean of its divisors is an integer number (2340983934576).

Almost surely, 2^{56650666605665} is an apocalyptic number.

56650666605665 is a gapful number since it is divisible by the number (55) formed by its first and last digit.

It is an amenable number.

56650666605665 is a deficient number, since it is larger than the sum of its proper divisors (18260819300767).

56650666605665 is a wasteful number, since it uses less digits than its factorization.

56650666605665 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2226041.

The product of its (nonzero) digits is 1049760000, while the sum is 68.

The spelling of 56650666605665 in words is "fifty-six trillion, six hundred fifty billion, six hundred sixty-six million, six hundred five thousand, six hundred sixty-five".