3662664012 has 72 divisors (see below), whose sum is σ = 10922376192. Its totient is φ = 1012716000.

The previous prime is 3662664001. The next prime is 3662664017. The reversal of 3662664012 is 2104662663.

3662664012 is a `hidden beast` number, since 3 + 6 + 6 + 2 + 6 + 640 + 1 + 2 = 666.

It is a super-2 number, since 2×3662664012² = 26830215329599872288, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is not an unprimeable number, because it can be changed into a prime (3662664017) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 226614 + ... + 242237.

Almost surely, 2^3662664012 is an apocalyptic number.

It is an amenable number.

3662664012 is an abundant number, since it is smaller than the sum of its proper divisors (7259712180).

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

3662664012 is a wasteful number, since it uses less digits than its factorization.

3662664012 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 468899 (or 468894 counting only the distinct ones).

The product of its (nonzero) digits is 62208, while the sum is 36.

The square root of 3662664012 is about 60519.9472240352. The cubic root of 3662664012 is about 1541.4603581354.

The spelling of 3662664012 in words is "three billion, six hundred sixty-two million, six hundred sixty-four thousand, twelve".