16909305255 has 80 divisors (see below), whose sum is σ = 33490252224. Its totient is φ = 8118696960.

The previous prime is 16909305241. The next prime is 16909305271. The reversal of 16909305255 is 55250390961.

16909305255 is a `hidden beast` number, since 1 + 6 + 90 + 9 + 30 + 525 + 5 = 666.

It is not a de Polignac number, because 16909305255 - 2⁹ = 16909304743 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a self number, because there is not a number n which added to its sum of digits gives 16909305255.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 79 ways as a sum of consecutive naturals, for example, 104965 + ... + 211745.

Almost surely, 2^16909305255 is an apocalyptic number.

16909305255 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

16909305255 is a deficient number, since it is larger than the sum of its proper divisors (16580946969).

16909305255 is a wasteful number, since it uses less digits than its factorization.

16909305255 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 106838 (or 106829 counting only the distinct ones).

The product of its (nonzero) digits is 364500, while the sum is 45.

The spelling of 16909305255 in words is "sixteen billion, nine hundred nine million, three hundred five thousand, two hundred fifty-five".