11115800580 has 24 divisors (see below), whose sum is σ = 31124241792. Its totient is φ = 2964213472.

The previous prime is 11115800513. The next prime is 11115800629. The reversal of 11115800580 is 8500851111.

It is a super-2 number, since 2×11115800580² (a number of 21 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (30).

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, 92631612 + ... + 92631731.

It is an arithmetic number, because the mean of its divisors is an integer number (1296843408).

Almost surely, 2^11115800580 is an apocalyptic number.

11115800580 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

11115800580 is an abundant number, since it is smaller than the sum of its proper divisors (20008441212).

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

11115800580 is a wasteful number, since it uses less digits than its factorization.

11115800580 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 185263355 (or 185263353 counting only the distinct ones).

The product of its (nonzero) digits is 1600, while the sum is 30.

The spelling of 11115800580 in words is "eleven billion, one hundred fifteen million, eight hundred thousand, five hundred eighty".