13661165202 has 32 divisors (see below), whose sum is σ = 27871034688. Its totient is φ = 4462476096.

The previous prime is 13661165159. The next prime is 13661165213. The reversal of 13661165202 is 20256116631.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 246073 + ... + 296435.

It is an arithmetic number, because the mean of its divisors is an integer number (870969834).

Almost surely, 2^13661165202 is an apocalyptic number.

13661165202 is an abundant number, since it is smaller than the sum of its proper divisors (14209869486).

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

13661165202 is a wasteful number, since it uses less digits than its factorization.

13661165202 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 51274.

The product of its (nonzero) digits is 12960, while the sum is 33.

The spelling of 13661165202 in words is "thirteen billion, six hundred sixty-one million, one hundred sixty-five thousand, two hundred two".