664051300 has 72 divisors (see below), whose sum is σ = 1587523392. Its totient is φ = 239088000.

The previous prime is 664051187. The next prime is 664051301. The reversal of 664051300 is 3150466.

664051300 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (25).

It is not an unprimeable number, because it can be changed into a prime (664051301) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 110370 + ... + 116230.

It is an arithmetic number, because the mean of its divisors is an integer number (22048936).

Almost surely, 2^664051300 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 664051300, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (793761696).

664051300 is an abundant number, since it is smaller than the sum of its proper divisors (923472092).

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

664051300 is a wasteful number, since it uses less digits than its factorization.

664051300 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5989 (or 5982 counting only the distinct ones).

The product of its (nonzero) digits is 2160, while the sum is 25.

The square root of 664051300 is about 25769.1928472740. The cubic root of 664051300 is about 872.4366010041.

The spelling of 664051300 in words is "six hundred sixty-four million, fifty-one thousand, three hundred".