63940168 has 32 divisors (see below), whose sum is σ = 126691200. Its totient is φ = 30169152.

The previous prime is 63940159. The next prime is 63940193. The reversal of 63940168 is 86104936.

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, 47521 + ... + 48847.

It is an arithmetic number, because the mean of its divisors is an integer number (3959100).

Almost surely, 2^63940168 is an apocalyptic number.

It is an amenable number.

63940168 is a deficient number, since it is larger than the sum of its proper divisors (62751032).

63940168 is a wasteful number, since it uses less digits than its factorization.

63940168 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1669 (or 1665 counting only the distinct ones).

The product of its (nonzero) digits is 31104, while the sum is 37.

The square root of 63940168 is about 7996.2596256000. The cubic root of 63940168 is about 399.8753111358.

The spelling of 63940168 in words is "sixty-three million, nine hundred forty thousand, one hundred sixty-eight".