56612422421665 has 32 divisors (see below), whose sum is σ = 74590029206784. Its totient is φ = 40906487082240.

The previous prime is 56612422421657. The next prime is 56612422421669.

56612422421665 is nontrivially palindromic in base 10.

It is not a de Polignac number, because 56612422421665 - 2³ = 56612422421657 is a prime.

It is a super-2 number, since 2×56612422421665² (a number of 28 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (56612422421669) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 90935827 + ... + 91556263.

It is an arithmetic number, because the mean of its divisors is an integer number (2330938412712).

Almost surely, 2^{56612422421665} is an apocalyptic number.

56612422421665 is a gapful number since it is divisible by the number (55) formed by its first and last digit.

It is an amenable number.

56612422421665 is a deficient number, since it is larger than the sum of its proper divisors (17977606785119).

56612422421665 is a wasteful number, since it uses less digits than its factorization.

56612422421665 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 631177.

The product of its digits is 8294400, while the sum is 52.

The spelling of 56612422421665 in words is "fifty-six trillion, six hundred twelve billion, four hundred twenty-two million, four hundred twenty-one thousand, six hundred sixty-five".