64312056414561 has 16 divisors (see below), whose sum is σ = 90795041296128. Its totient is φ = 40351974009600.

The previous prime is 64312056414553. The next prime is 64312056414667. The reversal of 64312056414561 is 16541465021346.

It is not a de Polignac number, because 64312056414561 - 2³ = 64312056414553 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 64312056414561.

It is not an unprimeable number, because it can be changed into a prime (64312056414461) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 7737945 + ... + 13729526.

It is an arithmetic number, because the mean of its divisors is an integer number (5674690081008).

Almost surely, 2^{64312056414561} is an apocalyptic number.

It is an amenable number.

64312056414561 is a deficient number, since it is larger than the sum of its proper divisors (26482984881567).

64312056414561 is a wasteful number, since it uses less digits than its factorization.

64312056414561 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21526232.

The product of its (nonzero) digits is 2073600, while the sum is 48.

The spelling of 64312056414561 in words is "sixty-four trillion, three hundred twelve billion, fifty-six million, four hundred fourteen thousand, five hundred sixty-one".