13520537450000 has 240 divisors, whose sum is σ = 37433126626560. Its totient is φ = 4634051520000.

The previous prime is 13520537449963. The next prime is 13520537450011. The reversal of 13520537450000 is 5473502531.

It is a Harshad number since it is a multiple of its sum of digits (35).

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 1604045786 + ... + 1604054214.

It is an arithmetic number, because the mean of its divisors is an integer number (155971360944).

Almost surely, 2^{13520537450000} is an apocalyptic number.

13520537450000 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 13520537450000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (18716563313280).

13520537450000 is an abundant number, since it is smaller than the sum of its proper divisors (23912589176560).

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

13520537450000 is an frugal number, since it uses more digits than its factorization.

13520537450000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13052 (or 13026 counting only the distinct ones).

The product of its (nonzero) digits is 63000, while the sum is 35.

The spelling of 13520537450000 in words is "thirteen trillion, five hundred twenty billion, five hundred thirty-seven million, four hundred fifty thousand".