13238208180 has 36 divisors (see below), whose sum is σ = 40155898692. Its totient is φ = 3530188800.

The previous prime is 13238208149. The next prime is 13238208251. The reversal of 13238208180 is 8180283231.

It can be written as a sum of positive squares in 2 ways, for example, as 8813829924 + 4424378256 = 93882^2 + 66516^2 .

It is a tau number, because it is divible by the number of its divisors (36).

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 36772621 + ... + 36772980.

Almost surely, 2^13238208180 is an apocalyptic number.

13238208180 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

13238208180 is an abundant number, since it is smaller than the sum of its proper divisors (26917690512).

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

13238208180 is a wasteful number, since it uses less digits than its factorization.

13238208180 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 73545616 (or 73545611 counting only the distinct ones).

The product of its (nonzero) digits is 18432, while the sum is 36.

The spelling of 13238208180 in words is "thirteen billion, two hundred thirty-eight million, two hundred eight thousand, one hundred eighty".