13165145052 has 24 divisors (see below), whose sum is σ = 31433060736. Its totient is φ = 4286326128.

The previous prime is 13165145029. The next prime is 13165145057. The reversal of 13165145052 is 25054156131.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13165145057) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 12756408 + ... + 12757439.

It is an arithmetic number, because the mean of its divisors is an integer number (1309710864).

Almost surely, 2^13165145052 is an apocalyptic number.

13165145052 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

13165145052 is an abundant number, since it is smaller than the sum of its proper divisors (18267915684).

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

13165145052 is a wasteful number, since it uses less digits than its factorization.

13165145052 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 25513897 (or 25513895 counting only the distinct ones).

The product of its (nonzero) digits is 18000, while the sum is 33.

The spelling of 13165145052 in words is "thirteen billion, one hundred sixty-five million, one hundred forty-five thousand, fifty-two".