660536016 has 80 divisors (see below), whose sum is σ = 2017430400. Its totient is φ = 182214144.

The previous prime is 660535991. The next prime is 660536021. The reversal of 660536016 is 610635066.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 24151 + ... + 43638.

It is an arithmetic number, because the mean of its divisors is an integer number (25217880).

Almost surely, 2^660536016 is an apocalyptic number.

It is an amenable number.

660536016 is an abundant number, since it is smaller than the sum of its proper divisors (1356894384).

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

660536016 is a wasteful number, since it uses less digits than its factorization.

660536016 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 67836 (or 67830 counting only the distinct ones).

The product of its (nonzero) digits is 19440, while the sum is 33.

The square root of 660536016 is about 25700.8952373259. The cubic root of 660536016 is about 870.8944058590.

The spelling of 660536016 in words is "six hundred sixty million, five hundred thirty-six thousand, sixteen".