13136154520 has 32 divisors (see below), whose sum is σ = 30509781120. Its totient is φ = 5084962560.

The previous prime is 13136154497. The next prime is 13136154557. The reversal of 13136154520 is 2545163131.

It is a Harshad number since it is a multiple of its sum of digits (31).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5295597 + ... + 5298076.

It is an arithmetic number, because the mean of its divisors is an integer number (953430660).

Almost surely, 2^13136154520 is an apocalyptic number.

13136154520 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

13136154520 is an abundant number, since it is smaller than the sum of its proper divisors (17373626600).

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

13136154520 is a wasteful number, since it uses less digits than its factorization.

13136154520 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10593715 (or 10593711 counting only the distinct ones).

The product of its (nonzero) digits is 10800, while the sum is 31.

The spelling of 13136154520 in words is "thirteen billion, one hundred thirty-six million, one hundred fifty-four thousand, five hundred twenty".