13209801552 has 60 divisors (see below), whose sum is σ = 37099844704. Its totient is φ = 4387694400.

The previous prime is 13209801551. The next prime is 13209801569. The reversal of 13209801552 is 25510890231.

13209801552 is a `hidden beast` number, since 1 + 3 + 20 + 9 + 80 + 1 + 552 = 666.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13209801551) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 121324 + ... + 202827.

Almost surely, 2^13209801552 is an apocalyptic number.

13209801552 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

13209801552 is an abundant number, since it is smaller than the sum of its proper divisors (23890043152).

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

13209801552 is a wasteful number, since it uses less digits than its factorization.

13209801552 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 324448 (or 324439 counting only the distinct ones).

The product of its (nonzero) digits is 21600, while the sum is 36.

The spelling of 13209801552 in words is "thirteen billion, two hundred nine million, eight hundred one thousand, five hundred fifty-two".