63660460 has 12 divisors (see below), whose sum is σ = 133687008. Its totient is φ = 25464176.

The previous prime is 63660449. The next prime is 63660497. The reversal of 63660460 is 6406636.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1591492 + ... + 1591531.

It is an arithmetic number, because the mean of its divisors is an integer number (11140584).

Almost surely, 2^63660460 is an apocalyptic number.

It is an amenable number.

63660460 is an abundant number, since it is smaller than the sum of its proper divisors (70026548).

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

63660460 is a wasteful number, since it uses less digits than its factorization.

63660460 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3183032 (or 3183030 counting only the distinct ones).

The product of its (nonzero) digits is 15552, while the sum is 31.

The square root of 63660460 is about 7978.7505287482. The cubic root of 63660460 is about 399.2913703514.

The spelling of 63660460 in words is "sixty-three million, six hundred sixty thousand, four hundred sixty".