64190276164 has 27 divisors (see below), whose sum is σ = 130680283293. Its totient is φ = 27508598208.

The previous prime is 64190276119. The next prime is 64190276177. The reversal of 64190276164 is 46167209146.

The square root of 64190276164 is 253358.

It is a perfect power (a square), and thus also a powerful number.

It can be written as a sum of positive squares in only one way, i.e., 8396056900 + 55794219264 = 91630^2 + 236208^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 8 ways as a sum of consecutive naturals, for example, 3537964 + ... + 3556060.

Almost surely, 2^64190276164 is an apocalyptic number.

64190276164 is the 253358-th square number.

It is an amenable number.

64190276164 is an abundant number, since it is smaller than the sum of its proper divisors (66490007129).

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

64190276164 is an frugal number, since it uses more digits than its factorization.

64190276164 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 36212 (or 18106 counting only the distinct ones).

The product of its (nonzero) digits is 435456, while the sum is 46.

The spelling of 64190276164 in words is "sixty-four billion, one hundred ninety million, two hundred seventy-six thousand, one hundred sixty-four".