16720050355 has 16 divisors (see below), whose sum is σ = 20132461440. Its totient is φ = 13330510848.

The previous prime is 16720050337. The next prime is 16720050379. The reversal of 16720050355 is 55305002761.

It is a cyclic number.

It is not a de Polignac number, because 16720050355 - 2⁵ = 16720050323 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 16720050355.

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, 2245719 + ... + 2253151.

It is an arithmetic number, because the mean of its divisors is an integer number (1258278840).

Almost surely, 2^16720050355 is an apocalyptic number.

16720050355 is a deficient number, since it is larger than the sum of its proper divisors (3412411085).

16720050355 is a wasteful number, since it uses less digits than its factorization.

16720050355 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8910.

The product of its (nonzero) digits is 31500, while the sum is 34.

The spelling of 16720050355 in words is "sixteen billion, seven hundred twenty million, fifty thousand, three hundred fifty-five".