64204236164 has 12 divisors (see below), whose sum is σ = 112400299788. Its totient is φ = 32089864800.

The previous prime is 64204236149. The next prime is 64204236193. The reversal of 64204236164 is 46163240246.

It can be written as a sum of positive squares in 2 ways, for example, as 19822387264 + 44381848900 = 140792^2 + 210670^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3051527 + ... + 3072494.

It is an arithmetic number, because the mean of its divisors is an integer number (9366691649).

Almost surely, 2^64204236164 is an apocalyptic number.

It is an amenable number.

64204236164 is a deficient number, since it is larger than the sum of its proper divisors (48196063624).

64204236164 is a wasteful number, since it uses less digits than its factorization.

64204236164 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6126646 (or 6126644 counting only the distinct ones).

The product of its (nonzero) digits is 165888, while the sum is 38.

The spelling of 64204236164 in words is "sixty-four billion, two hundred four million, two hundred thirty-six thousand, one hundred sixty-four".