3163636404 has 72 divisors (see below), whose sum is σ = 8152609920. Its totient is φ = 1034111232.

The previous prime is 3163636393. The next prime is 3163636447. The reversal of 3163636404 is 4046363613.

3163636404 is a `hidden beast` number, since 3 + 1 + 6 + 3 + 6 + 3 + 640 + 4 = 666.

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

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 981804 + ... + 985020.

Almost surely, 2^3163636404 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 3163636404, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (4076304960).

3163636404 is an abundant number, since it is smaller than the sum of its proper divisors (4988973516).

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

3163636404 is a wasteful number, since it uses less digits than its factorization.

3163636404 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3749 (or 3744 counting only the distinct ones).

The product of its (nonzero) digits is 93312, while the sum is 36.

The square root of 3163636404 is about 56246.2123524776. The cubic root of 3163636404 is about 1468.0094618599.

The spelling of 3163636404 in words is "three billion, one hundred sixty-three million, six hundred thirty-six thousand, four hundred four".