13520632512 has 112 divisors (see below), whose sum is σ = 36337930880. Its totient is φ = 4436011008.

The previous prime is 13520632483. The next prime is 13520632529. The reversal of 13520632512 is 21523602531.

It is a self number, because there is not a number n which added to its sum of digits gives 13520632512.

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, 12039183 + ... + 12040305.

Almost surely, 2^13520632512 is an apocalyptic number.

13520632512 is a gapful number since it is divisible by the number (12) 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 13520632512, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (18168965440).

13520632512 is an abundant number, since it is smaller than the sum of its proper divisors (22817298368).

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

13520632512 is a wasteful number, since it uses less digits than its factorization.

13520632512 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2070 (or 2060 counting only the distinct ones).

The product of its (nonzero) digits is 10800, while the sum is 30.

The spelling of 13520632512 in words is "thirteen billion, five hundred twenty million, six hundred thirty-two thousand, five hundred twelve".