11111110980 has 24 divisors (see below), whose sum is σ = 31111110912. Its totient is φ = 2962962912.

The previous prime is 11111110979. The next prime is 11111111059. The reversal of 11111110980 is 8901111111.

It is a self number, because there is not a number n which added to its sum of digits gives 11111110980.

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, 92592532 + ... + 92592651.

It is an arithmetic number, because the mean of its divisors is an integer number (1296296288).

Almost surely, 2^11111110980 is an apocalyptic number.

11111110980 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

11111110980 is an abundant number, since it is smaller than the sum of its proper divisors (19999999932).

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

11111110980 is a wasteful number, since it uses less digits than its factorization.

11111110980 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 185185195 (or 185185193 counting only the distinct ones).

The product of its (nonzero) digits is 72, while the sum is 24.

The spelling of 11111110980 in words is "eleven billion, one hundred eleven million, one hundred ten thousand, nine hundred eighty".