664628152 has 16 divisors (see below), whose sum is σ = 1247547600. Its totient is φ = 331948800.

The previous prime is 664628147. The next prime is 664628179. The reversal of 664628152 is 251826466.

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, 37849 + ... + 52552.

It is an arithmetic number, because the mean of its divisors is an integer number (77971725).

Almost surely, 2^664628152 is an apocalyptic number.

It is an amenable number.

664628152 is a deficient number, since it is larger than the sum of its proper divisors (582919448).

664628152 is a wasteful number, since it uses less digits than its factorization.

664628152 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 91326 (or 91322 counting only the distinct ones).

The product of its digits is 138240, while the sum is 40.

The square root of 664628152 is about 25780.3830848186. The cubic root of 664628152 is about 872.6891523464.

The spelling of 664628152 in words is "six hundred sixty-four million, six hundred twenty-eight thousand, one hundred fifty-two".