64131446224056 has 64 divisors (see below), whose sum is σ = 167397320563200. Its totient is φ = 20435742470528.

The previous prime is 64131446224049. The next prime is 64131446224063. The reversal of 64131446224056 is 65042264413146.

It is an interprime number because it is at equal distance from previous prime (64131446224049) and next prime (64131446224063).

It is a super-2 number, since 2×64131446224056² (a number of 28 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 64131446223996 and 64131446224014.

It is a congruent number.

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, 33047316 + ... + 34934051.

It is an arithmetic number, because the mean of its divisors is an integer number (2615583133800).

Almost surely, 2^{64131446224056} is an apocalyptic number.

It is an amenable number.

64131446224056 is an abundant number, since it is smaller than the sum of its proper divisors (103265874339144).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

64131446224056 is a wasteful number, since it uses less digits than its factorization.

64131446224056 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 67983108 (or 67983104 counting only the distinct ones).

The product of its (nonzero) digits is 3317760, while the sum is 48.

The spelling of 64131446224056 in words is "sixty-four trillion, one hundred thirty-one billion, four hundred forty-six million, two hundred twenty-four thousand, fifty-six".