636166016 has 64 divisors (see below), whose sum is σ = 1328896800. Its totient is φ = 302776320.

The previous prime is 636166001. The next prime is 636166031. The reversal of 636166016 is 610661636.

636166016 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an interprime number because it is at equal distance from previous prime (636166001) and next prime (636166031).

It is a tau number, because it is divible by the number of its divisors (64).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 826880 + ... + 827648.

Almost surely, 2^636166016 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 636166016, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (664448400).

636166016 is an abundant number, since it is smaller than the sum of its proper divisors (692730784).

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

636166016 is a wasteful number, since it uses less digits than its factorization.

636166016 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1087 (or 1075 counting only the distinct ones).

The product of its (nonzero) digits is 23328, while the sum is 35.

The square root of 636166016 is about 25222.3316923713. The cubic root of 636166016 is about 860.0495807002.

The spelling of 636166016 in words is "six hundred thirty-six million, one hundred sixty-six thousand, sixteen".