16513112375840 has 48 divisors (see below), whose sum is σ = 41307064935192. Its totient is φ = 6216701128704.

The previous prime is 16513112375827. The next prime is 16513112375843. The reversal of 16513112375840 is 4857321131561.

It can be written as a sum of positive squares in 4 ways, for example, as 13990263006736 + 2522849369104 = 3740356^2 + 1588348^2 .

It is not an unprimeable number, because it can be changed into a prime (16513112375843) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3035495879 + ... + 3035501318.

Almost surely, 2^{16513112375840} is an apocalyptic number.

16513112375840 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

16513112375840 is an abundant number, since it is smaller than the sum of its proper divisors (24793952559352).

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

16513112375840 is a wasteful number, since it uses less digits than its factorization.

16513112375840 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6070997229 (or 6070997221 counting only the distinct ones).

The product of its (nonzero) digits is 604800, while the sum is 47.

The spelling of 16513112375840 in words is "sixteen trillion, five hundred thirteen billion, one hundred twelve million, three hundred seventy-five thousand, eight hundred forty".