63612631016 has 64 divisors (see below), whose sum is σ = 133282670400. Its totient is φ = 28212710400.

The previous prime is 63612630967. The next prime is 63612631021. The reversal of 63612631016 is 61013621636.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3809726 + ... + 3826386.

It is an arithmetic number, because the mean of its divisors is an integer number (2082541725).

Almost surely, 2^63612631016 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 63612631016, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (66641335200).

63612631016 is an abundant number, since it is smaller than the sum of its proper divisors (69670039384).

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

63612631016 is a wasteful number, since it uses less digits than its factorization.

63612631016 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17730 (or 17726 counting only the distinct ones).

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

The spelling of 63612631016 in words is "sixty-three billion, six hundred twelve million, six hundred thirty-one thousand, sixteen".