11920988580 has 24 divisors (see below), whose sum is σ = 33378768192. Its totient is φ = 3178930272.

The previous prime is 11920988567. The next prime is 11920988581. The reversal of 11920988580 is 8588902911.

11920988580 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not an unprimeable number, because it can be changed into a prime (11920988581) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 99341512 + ... + 99341631.

It is an arithmetic number, because the mean of its divisors is an integer number (1390782008).

Almost surely, 2^11920988580 is an apocalyptic number.

11920988580 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

11920988580 is an abundant number, since it is smaller than the sum of its proper divisors (21457779612).

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

11920988580 is a wasteful number, since it uses less digits than its factorization.

11920988580 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 198683155 (or 198683153 counting only the distinct ones).

The product of its (nonzero) digits is 414720, while the sum is 51.

The spelling of 11920988580 in words is "eleven billion, nine hundred twenty million, nine hundred eighty-eight thousand, five hundred eighty".