664155316 has 24 divisors (see below), whose sum is σ = 1273394304. Its totient is φ = 300588480.

The previous prime is 664155311. The next prime is 664155329. The reversal of 664155316 is 613551466.

664155316 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 2×664155316² = 882204567542119712, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (664155311) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 22140 + ... + 42643.

It is an arithmetic number, because the mean of its divisors is an integer number (53058096).

Almost surely, 2^664155316 is an apocalyptic number.

It is an amenable number.

664155316 is a deficient number, since it is larger than the sum of its proper divisors (609238988).

664155316 is a wasteful number, since it uses less digits than its factorization.

664155316 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 65031 (or 65029 counting only the distinct ones).

The product of its digits is 64800, while the sum is 37.

The square root of 664155316 is about 25771.2109921129. The cubic root of 664155316 is about 872.4821510129.

The spelling of 664155316 in words is "six hundred sixty-four million, one hundred fifty-five thousand, three hundred sixteen".