63633330072 has 48 divisors (see below), whose sum is σ = 185597215440. Its totient is φ = 19579485888.

The previous prime is 63633330053. The next prime is 63633330097. The reversal of 63633330072 is 27003333636.

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 11 ways as a sum of consecutive naturals, for example, 33991228 + ... + 33993099.

It is an arithmetic number, because the mean of its divisors is an integer number (3866608655).

Almost surely, 2^63633330072 is an apocalyptic number.

It is an amenable number.

63633330072 is an abundant number, since it is smaller than the sum of its proper divisors (121963885368).

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

63633330072 is a wasteful number, since it uses less digits than its factorization.

63633330072 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 67984352 (or 67984345 counting only the distinct ones).

The product of its (nonzero) digits is 122472, while the sum is 36.

The spelling of 63633330072 in words is "sixty-three billion, six hundred thirty-three million, three hundred thirty thousand, seventy-two".