64913162582656 has 32 divisors (see below), whose sum is σ = 129883903766100. Its totient is φ = 32314849480704.

The previous prime is 64913162582623. The next prime is 64913162582731. The reversal of 64913162582656 is 65628526131946.

It can be written as a sum of positive squares in 2 ways, for example, as 63708875822656 + 1204286760000 = 7981784^2 + 1097400^2 .

It is a tau number, because it is divible by the number of its divisors (32).

It is a Harshad number since it is a multiple of its sum of digits (64).

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, 1107250345 + ... + 1107308968.

Almost surely, 2^{64913162582656} is an apocalyptic number.

It is an amenable number.

64913162582656 is an abundant number, since it is smaller than the sum of its proper divisors (64970741183444).

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

64913162582656 is a wasteful number, since it uses less digits than its factorization.

64913162582656 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2214559556 (or 2214559544 counting only the distinct ones).

The product of its digits is 111974400, while the sum is 64.

The spelling of 64913162582656 in words is "sixty-four trillion, nine hundred thirteen billion, one hundred sixty-two million, five hundred eighty-two thousand, six hundred fifty-six".