13191455880 has 160 divisors (see below), whose sum is σ = 46265947200. Its totient is φ = 3364758144.

The previous prime is 13191455873. The next prime is 13191455891. The reversal of 13191455880 is 8855419131.

13191455880 is a `hidden beast` number, since 1 + 3 + 1 + 9 + 14 + 558 + 80 = 666.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is an unprimeable number.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 13990 + ... + 163029.

It is an arithmetic number, because the mean of its divisors is an integer number (289162170).

Almost surely, 2^13191455880 is an apocalyptic number.

13191455880 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 13191455880, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (23132973600).

13191455880 is an abundant number, since it is smaller than the sum of its proper divisors (33074491320).

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

13191455880 is a wasteful number, since it uses less digits than its factorization.

13191455880 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 177065 (or 177052 counting only the distinct ones).

The product of its (nonzero) digits is 172800, while the sum is 45.

The spelling of 13191455880 in words is "thirteen billion, one hundred ninety-one million, four hundred fifty-five thousand, eight hundred eighty".