13516573440 has 144 divisors (see below), whose sum is σ = 43485347808. Its totient is φ = 3577970688.

The previous prime is 13516573429. The next prime is 13516573453. The reversal of 13516573440 is 4437561531.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 513234 + ... + 538926.

It is an arithmetic number, because the mean of its divisors is an integer number (301981582).

Almost surely, 2^13516573440 is an apocalyptic number.

13516573440 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 13516573440, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (21742673904).

13516573440 is an abundant number, since it is smaller than the sum of its proper divisors (29968774368).

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

13516573440 is a wasteful number, since it uses less digits than its factorization.

13516573440 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 25854 (or 25840 counting only the distinct ones).

The product of its (nonzero) digits is 151200, while the sum is 39.

The spelling of 13516573440 in words is "thirteen billion, five hundred sixteen million, five hundred seventy-three thousand, four hundred forty".