16613404520 has 64 divisors (see below), whose sum is σ = 37654657920. Its totient is φ = 6596687104.

The previous prime is 16613404519. The next prime is 16613404531. The reversal of 16613404520 is 2540431661.

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, 5721389 + ... + 5724291.

It is an arithmetic number, because the mean of its divisors is an integer number (588354030).

Almost surely, 2^16613404520 is an apocalyptic number.

16613404520 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

16613404520 is an abundant number, since it is smaller than the sum of its proper divisors (21041253400).

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

16613404520 is a wasteful number, since it uses less digits than its factorization.

16613404520 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3914 (or 3910 counting only the distinct ones).

The product of its (nonzero) digits is 17280, while the sum is 32.

The spelling of 16613404520 in words is "sixteen billion, six hundred thirteen million, four hundred four thousand, five hundred twenty".