13166512520 has 64 divisors (see below), whose sum is σ = 33926618880. Its totient is φ = 4504916736.

The previous prime is 13166512481. The next prime is 13166512531. The reversal of 13166512520 is 2521566131.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 88082 + ... + 184638.

It is an arithmetic number, because the mean of its divisors is an integer number (530103420).

Almost surely, 2^13166512520 is an apocalyptic number.

13166512520 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 13166512520, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (16963309440).

13166512520 is an abundant number, since it is smaller than the sum of its proper divisors (20760106360).

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

13166512520 is a wasteful number, since it uses less digits than its factorization.

13166512520 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 97062 (or 97058 counting only the distinct ones).

The product of its (nonzero) digits is 10800, while the sum is 32.

The spelling of 13166512520 in words is "thirteen billion, one hundred sixty-six million, five hundred twelve thousand, five hundred twenty".