11161056664 has 32 divisors (see below), whose sum is σ = 21018770640. Its totient is φ = 5556096000.

The previous prime is 11161056581. The next prime is 11161056701. The reversal of 11161056664 is 46665016111.

It is a congruent number.

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, 2629584 + ... + 2633824.

Almost surely, 2^11161056664 is an apocalyptic number.

It is an amenable number.

11161056664 is a deficient number, since it is larger than the sum of its proper divisors (9857713976).

11161056664 is a wasteful number, since it uses less digits than its factorization.

11161056664 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5611 (or 5607 counting only the distinct ones).

The product of its (nonzero) digits is 25920, while the sum is 37.

It can be divided in two parts, 111 and 61056664, that added together give a triangular number (61056775 = T₁₁₀₅₀).

The spelling of 11161056664 in words is "eleven billion, one hundred sixty-one million, fifty-six thousand, six hundred sixty-four".