63071664 has 40 divisors (see below), whose sum is σ = 163412160. Its totient is φ = 20962368.

The previous prime is 63071663. The next prime is 63071677. The reversal of 63071664 is 46617036.

It is not an unprimeable number, because it can be changed into a prime (63071663) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 16459 + ... + 19925.

It is an arithmetic number, because the mean of its divisors is an integer number (4085304).

Almost surely, 2^63071664 is an apocalyptic number.

It is an amenable number.

63071664 is an abundant number, since it is smaller than the sum of its proper divisors (100340496).

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

63071664 is a wasteful number, since it uses less digits than its factorization.

63071664 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3857 (or 3851 counting only the distinct ones).

The product of its (nonzero) digits is 18144, while the sum is 33.

The square root of 63071664 is about 7941.7670577775. The cubic root of 63071664 is about 398.0565393613.

The spelling of 63071664 in words is "sixty-three million, seventy-one thousand, six hundred sixty-four".