64534695066 has 24 divisors (see below), whose sum is σ = 143076922560. Its totient is φ = 21011295816.

The previous prime is 64534695053. The next prime is 64534695083. The reversal of 64534695066 is 66059643546.

64534695066 is a `hidden beast` number, since 6 + 45 + 34 + 69 + 506 + 6 = 666.

It is a Curzon number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 41688306 + ... + 41689853.

It is an arithmetic number, because the mean of its divisors is an integer number (5961538440).

Almost surely, 2^64534695066 is an apocalyptic number.

64534695066 is an abundant number, since it is smaller than the sum of its proper divisors (78542227494).

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

64534695066 is a wasteful number, since it uses less digits than its factorization.

64534695066 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 83378210 (or 83378207 counting only the distinct ones).

The product of its (nonzero) digits is 13996800, while the sum is 54.

The spelling of 64534695066 in words is "sixty-four billion, five hundred thirty-four million, six hundred ninety-five thousand, sixty-six".