636830344416 has 432 divisors, whose sum is σ = 2016389676672. Its totient is φ = 172364682240.

The previous prime is 636830344253. The next prime is 636830344427. The reversal of 636830344416 is 614443038636.

It is a Harshad number since it is a multiple of its sum of digits (48).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 71 ways as a sum of consecutive naturals, for example, 5842480170 + ... + 5842480278.

It is an arithmetic number, because the mean of its divisors is an integer number (4667568696).

Almost surely, 2^636830344416 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 636830344416, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1008194838336).

636830344416 is an abundant number, since it is smaller than the sum of its proper divisors (1379559332256).

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

636830344416 is a wasteful number, since it uses less digits than its factorization.

636830344416 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 383 (or 235 counting only the distinct ones).

The product of its (nonzero) digits is 2985984, while the sum is 48.

The spelling of 636830344416 in words is "six hundred thirty-six billion, eight hundred thirty million, three hundred forty-four thousand, four hundred sixteen".