16520347280100 has 72 divisors (see below), whose sum is σ = 49877083287360. Its totient is φ = 4213885681280.

The previous prime is 16520347280083. The next prime is 16520347280131. The reversal of 16520347280100 is 108274302561.

16520347280100 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 1197119715 + ... + 1197133514.

It is an arithmetic number, because the mean of its divisors is an integer number (692737267880).

Almost surely, 2^{16520347280100} is an apocalyptic number.

16520347280100 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

16520347280100 is an abundant number, since it is smaller than the sum of its proper divisors (33356736007260).

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

16520347280100 is a wasteful number, since it uses less digits than its factorization.

16520347280100 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2394253269 (or 2394253262 counting only the distinct ones).

The product of its (nonzero) digits is 80640, while the sum is 39.

The spelling of 16520347280100 in words is "sixteen trillion, five hundred twenty billion, three hundred forty-seven million, two hundred eighty thousand, one hundred".