36665556664 has 16 divisors (see below), whose sum is σ = 74997729720. Its totient is φ = 16666162080.

The previous prime is 36665556623. The next prime is 36665556671. The reversal of 36665556664 is 46665556663.

It is a junction number, because it is equal to n+sod(n) for n = 36665556599 and 36665556608.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 208326939 + ... + 208327114.

Almost surely, 2^36665556664 is an apocalyptic number.

It is an amenable number.

36665556664 is an abundant number, since it is smaller than the sum of its proper divisors (38332173056).

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

36665556664 is a wasteful number, since it uses less digits than its factorization.

36665556664 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 416654070 (or 416654066 counting only the distinct ones).

The product of its digits is 69984000, while the sum is 58.

Subtracting 36665556664 from its reverse (46665556663), we obtain a palindrome (9999999999).

The spelling of 36665556664 in words is "thirty-six billion, six hundred sixty-five million, five hundred fifty-six thousand, six hundred sixty-four".