632666016 has 72 divisors (see below), whose sum is σ = 1904990724. Its totient is φ = 198481920.

The previous prime is 632666003. The next prime is 632666051. The reversal of 632666016 is 610666236.

It can be written as a sum of positive squares in 2 ways, for example, as 632019600 + 646416 = 25140^2 + 804^2 .

It is a tau number, because it is divible by the number of its divisors (72).

It is a Harshad number since it is a multiple of its sum of digits (36).

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, 59715 + ... + 69506.

Almost surely, 2^632666016 is an apocalyptic number.

It is an amenable number.

632666016 is an abundant number, since it is smaller than the sum of its proper divisors (1272324708).

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

632666016 is a wasteful number, since it uses less digits than its factorization.

632666016 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 129254 (or 129243 counting only the distinct ones).

The product of its (nonzero) digits is 46656, while the sum is 36.

The square root of 632666016 is about 25152.8530389696. The cubic root of 632666016 is about 858.4694319353.

The spelling of 632666016 in words is "six hundred thirty-two million, six hundred sixty-six thousand, sixteen".