664120336 has 20 divisors (see below), whose sum is σ = 1403709264. Its totient is φ = 301872800.

The previous prime is 664120333. The next prime is 664120397. The reversal of 664120336 is 633021466.

It is a junction number, because it is equal to n+sod(n) for n = 664120298 and 664120307.

It is not an unprimeable number, because it can be changed into a prime (664120333) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1886530 + ... + 1886881.

Almost surely, 2^664120336 is an apocalyptic number.

It is an amenable number.

664120336 is an abundant number, since it is smaller than the sum of its proper divisors (739588928).

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

664120336 is a wasteful number, since it uses less digits than its factorization.

664120336 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3773430 (or 3773424 counting only the distinct ones).

The product of its (nonzero) digits is 15552, while the sum is 31.

The square root of 664120336 is about 25770.5323189103. The cubic root of 664120336 is about 872.4668333301.

The spelling of 664120336 in words is "six hundred sixty-four million, one hundred twenty thousand, three hundred thirty-six".