64072206905 has 16 divisors (see below), whose sum is σ = 90900472320. Its totient is φ = 42420219072.

The previous prime is 64072206857. The next prime is 64072206907. The reversal of 64072206905 is 50960227046.

It is not a de Polignac number, because 64072206905 - 2³⁴ = 46892337721 is a prime.

It is not an unprimeable number, because it can be changed into a prime (64072206907) 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, 31561649 + ... + 31563678.

It is an arithmetic number, because the mean of its divisors is an integer number (5681279520).

Almost surely, 2^64072206905 is an apocalyptic number.

It is an amenable number.

64072206905 is a deficient number, since it is larger than the sum of its proper divisors (26828265415).

64072206905 is a wasteful number, since it uses less digits than its factorization.

64072206905 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 63125368.

The product of its (nonzero) digits is 181440, while the sum is 41.

The spelling of 64072206905 in words is "sixty-four billion, seventy-two million, two hundred six thousand, nine hundred five".