56420666602465 has 16 divisors (see below), whose sum is σ = 74689666928640. Its totient is φ = 40572164744320.

The previous prime is 56420666602381. The next prime is 56420666602481.

56420666602465 is nontrivially palindromic in base 10.

It is not a de Polignac number, because 56420666602465 - 2⁷ = 56420666602337 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 5763086689 + ... + 5763096478.

It is an arithmetic number, because the mean of its divisors is an integer number (4668104183040).

Almost surely, 2^{56420666602465} is an apocalyptic number.

56420666602465 is a gapful number since it is divisible by the number (55) formed by its first and last digit.

It is an amenable number.

56420666602465 is a deficient number, since it is larger than the sum of its proper divisors (18269000326175).

56420666602465 is a wasteful number, since it uses less digits than its factorization.

56420666602465 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11526183272.

The product of its (nonzero) digits is 74649600, while the sum is 58.

The spelling of 56420666602465 in words is "fifty-six trillion, four hundred twenty billion, six hundred sixty-six million, six hundred two thousand, four hundred sixty-five".