11570816780 has 12 divisors (see below), whose sum is σ = 24298715280. Its totient is φ = 4628326704.

The previous prime is 11570816771. The next prime is 11570816813. The reversal of 11570816780 is 8761807511.

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, 289270400 + ... + 289270439.

It is an arithmetic number, because the mean of its divisors is an integer number (2024892940).

Almost surely, 2^11570816780 is an apocalyptic number.

11570816780 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

11570816780 is an abundant number, since it is smaller than the sum of its proper divisors (12727898500).

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

11570816780 is a wasteful number, since it uses less digits than its factorization.

11570816780 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 578540848 (or 578540846 counting only the distinct ones).

The product of its (nonzero) digits is 94080, while the sum is 44.

The spelling of 11570816780 in words is "eleven billion, five hundred seventy million, eight hundred sixteen thousand, seven hundred eighty".