645007146532 has 12 divisors (see below), whose sum is σ = 1290014293120. Its totient is φ = 276431634216.

The previous prime is 645007146527. The next prime is 645007146541. The reversal of 645007146532 is 235641700546.

645007146532 is an admirable number.

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, 11517984732 + ... + 11517984787.

Almost surely, 2^645007146532 is an apocalyptic number.

It is an amenable number.

645007146532 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

645007146532 is a wasteful number, since it uses less digits than its factorization.

645007146532 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 23035969530 (or 23035969528 counting only the distinct ones).

The product of its (nonzero) digits is 604800, while the sum is 43.

The spelling of 645007146532 in words is "six hundred forty-five billion, seven million, one hundred forty-six thousand, five hundred thirty-two".