3664643336 has 32 divisors (see below), whose sum is σ = 6949200600. Its totient is φ = 1811604480.

The previous prime is 3664643327. The next prime is 3664643357. The reversal of 3664643336 is 6333464663.

It can be written as a sum of positive squares in 4 ways, for example, as 2015471236 + 1649172100 = 44894^2 + 40610^2 .

It is a super-2 number, since 2×3664643336² = 26859221560178417792, which contains 22 as substring.

It is a Smith number, since the sum of its digits (44) coincides with the sum of the digits of its prime factors.

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 7 ways as a sum of consecutive naturals, for example, 375770 + ... + 385398.

Almost surely, 2^3664643336 is an apocalyptic number.

It is an amenable number.

3664643336 is a deficient number, since it is larger than the sum of its proper divisors (3284557264).

3664643336 is a wasteful number, since it uses less digits than its factorization.

3664643336 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10169 (or 10165 counting only the distinct ones).

The product of its digits is 1679616, while the sum is 44.

The square root of 3664643336 is about 60536.2976733794. The cubic root of 3664643336 is about 1541.7379793819.

The spelling of 3664643336 in words is "three billion, six hundred sixty-four million, six hundred forty-three thousand, three hundred thirty-six".