664416152 has 16 divisors (see below), whose sum is σ = 1276165800. Its totient is φ = 324105280.

The previous prime is 664416139. The next prime is 664416167. The reversal of 664416152 is 251614466.

It is a congruent number.

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, 1012502 + ... + 1013157.

Almost surely, 2^664416152 is an apocalyptic number.

It is an amenable number.

664416152 is a deficient number, since it is larger than the sum of its proper divisors (611749648).

664416152 is a wasteful number, since it uses less digits than its factorization.

664416152 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2025706 (or 2025702 counting only the distinct ones).

The product of its digits is 34560, while the sum is 35.

The square root of 664416152 is about 25776.2711034781. The cubic root of 664416152 is about 872.5963537018.

The spelling of 664416152 in words is "six hundred sixty-four million, four hundred sixteen thousand, one hundred fifty-two".