5511666056664 has 64 divisors (see below), whose sum is σ = 14674038006240. Its totient is φ = 1719155025920.

The previous prime is 5511666056653. The next prime is 5511666056759. The reversal of 5511666056664 is 4666506661155.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 38972727 + ... + 39113894.

Almost surely, 2^{5511666056664} is an apocalyptic number.

It is an amenable number.

5511666056664 is an abundant number, since it is smaller than the sum of its proper divisors (9162371949576).

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

5511666056664 is a wasteful number, since it uses less digits than its factorization.

5511666056664 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 78086820 (or 78086816 counting only the distinct ones).

The product of its (nonzero) digits is 23328000, while the sum is 57.

The spelling of 5511666056664 in words is "five trillion, five hundred eleven billion, six hundred sixty-six million, fifty-six thousand, six hundred sixty-four".