11117776560 has 80 divisors (see below), whose sum is σ = 37598307840. Its totient is φ = 2695217920.

The previous prime is 11117776531. The next prime is 11117776609. The reversal of 11117776560 is 6567771111.

It is a tau number, because it is divible by the number of its divisors (80).

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, 2103000 + ... + 2108279.

It is an arithmetic number, because the mean of its divisors is an integer number (469978848).

Almost surely, 2^11117776560 is an apocalyptic number.

11117776560 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

11117776560 is an abundant number, since it is smaller than the sum of its proper divisors (26480531280).

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

11117776560 is a wasteful number, since it uses less digits than its factorization.

11117776560 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4211306 (or 4211300 counting only the distinct ones).

The product of its (nonzero) digits is 61740, while the sum is 42.

The spelling of 11117776560 in words is "eleven billion, one hundred seventeen million, seven hundred seventy-six thousand, five hundred sixty".