13188681320 has 16 divisors (see below), whose sum is σ = 29674533060. Its totient is φ = 5275472512.

The previous prime is 13188681301. The next prime is 13188681349. The reversal of 13188681320 is 2318688131.

It can be written as a sum of positive squares in 2 ways, for example, as 12277969636 + 910711684 = 110806^2 + 30178^2 .

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, 164858477 + ... + 164858556.

Almost surely, 2^13188681320 is an apocalyptic number.

13188681320 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

13188681320 is an abundant number, since it is smaller than the sum of its proper divisors (16485851740).

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

13188681320 is a wasteful number, since it uses less digits than its factorization.

13188681320 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 329717044 (or 329717040 counting only the distinct ones).

The product of its (nonzero) digits is 55296, while the sum is 41.

The spelling of 13188681320 in words is "thirteen billion, one hundred eighty-eight million, six hundred eighty-one thousand, three hundred twenty".