73263660564 has 36 divisors (see below), whose sum is σ = 181595863904. Its totient is φ = 22984676736.

The previous prime is 73263660517. The next prime is 73263660599. The reversal of 73263660564 is 46506636237.

It is a congruent 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, 10559344 + ... + 10566279.

Almost surely, 2^73263660564 is an apocalyptic number.

It is an amenable number.

73263660564 is an abundant number, since it is smaller than the sum of its proper divisors (108332203340).

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

73263660564 is a wasteful number, since it uses less digits than its factorization.

73263660564 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21125664 (or 21125645 counting only the distinct ones).

The product of its (nonzero) digits is 3265920, while the sum is 48.

The spelling of 73263660564 in words is "seventy-three billion, two hundred sixty-three million, six hundred sixty thousand, five hundred sixty-four".