664037048 has 16 divisors (see below), whose sum is σ = 1299203280. Its totient is φ = 317582848.

The previous prime is 664037029. The next prime is 664037063. The reversal of 664037048 is 840730466.

It is a happy number.

664037048 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×664037048² = 881890402233108608, which contains 22 as substring.

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, 1804265 + ... + 1804632.

It is an arithmetic number, because the mean of its divisors is an integer number (81200205).

Almost surely, 2^664037048 is an apocalyptic number.

It is an amenable number.

664037048 is a deficient number, since it is larger than the sum of its proper divisors (635166232).

664037048 is a wasteful number, since it uses less digits than its factorization.

664037048 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3608926 (or 3608922 counting only the distinct ones).

The product of its (nonzero) digits is 96768, while the sum is 38.

The square root of 664037048 is about 25768.9163140401. The cubic root of 664037048 is about 872.4303594906.

The spelling of 664037048 in words is "six hundred sixty-four million, thirty-seven thousand, forty-eight".