63140664 has 16 divisors (see below), whose sum is σ = 157851720. Its totient is φ = 21046880.

The previous prime is 63140663. The next prime is 63140683. The reversal of 63140664 is 46604136.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (63140663) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1315407 + ... + 1315454.

Almost surely, 2^63140664 is an apocalyptic number.

It is an amenable number.

63140664 is an abundant number, since it is smaller than the sum of its proper divisors (94711056).

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

63140664 is a wasteful number, since it uses less digits than its factorization.

63140664 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2630870 (or 2630866 counting only the distinct ones).

The product of its (nonzero) digits is 10368, while the sum is 30.

The square root of 63140664 is about 7946.1099916878. The cubic root of 63140664 is about 398.2016435688.

The spelling of 63140664 in words is "sixty-three million, one hundred forty thousand, six hundred sixty-four".