64663543166992 has 40 divisors (see below), whose sum is σ = 156200247133632. Its totient is φ = 25193588246400.

The previous prime is 64663543166947. The next prime is 64663543166993. The reversal of 64663543166992 is 29966134536646.

It is not an unprimeable number, because it can be changed into a prime (64663543166993) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 26243319859 + ... + 26243322322.

Almost surely, 2^{64663543166992} is an apocalyptic number.

It is an amenable number.

64663543166992 is an abundant number, since it is smaller than the sum of its proper divisors (91536703966640).

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

64663543166992 is a wasteful number, since it uses less digits than its factorization.

64663543166992 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 52486642207 (or 52486642201 counting only the distinct ones).

The product of its digits is 906992640, while the sum is 70.

The spelling of 64663543166992 in words is "sixty-four trillion, six hundred sixty-three billion, five hundred forty-three million, one hundred sixty-six thousand, nine hundred ninety-two".