356639664 has 20 divisors (see below), whose sum is σ = 921319256. Its totient is φ = 118879872.

The previous prime is 356639653. The next prime is 356639681. The reversal of 356639664 is 466936653.

It is a hoax number, since the sum of its digits (48) coincides with the sum of the digits of its distinct prime factors.

It is a Harshad number since it is a multiple of its sum of digits (48), and also a Moran number because the ratio is a prime number: 7429993 = 356639664 / (3 + 5 + 6 + 6 + 3 + 9 + 6 + 6 + 4).

It is an unprimeable number.

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, 3714949 + ... + 3715044.

Almost surely, 2^356639664 is an apocalyptic number.

It is an amenable number.

356639664 is an abundant number, since it is smaller than the sum of its proper divisors (564679592).

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

356639664 is a wasteful number, since it uses less digits than its factorization.

356639664 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7430004 (or 7429998 counting only the distinct ones).

The product of its digits is 2099520, while the sum is 48.

The square root of 356639664 is about 18884.9057185891. The cubic root of 356639664 is about 709.1583387673.

The spelling of 356639664 in words is "three hundred fifty-six million, six hundred thirty-nine thousand, six hundred sixty-four".