16905995208 has 96 divisors (see below), whose sum is σ = 47408587200. Its totient is φ = 5436111744.

The previous prime is 16905995153. The next prime is 16905995231. The reversal of 16905995208 is 80259950961.

16905995208 is a `hidden beast` number, since 1 + 69 + 0 + 59 + 9 + 520 + 8 = 666.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 2851335 + ... + 2857257.

It is an arithmetic number, because the mean of its divisors is an integer number (493839450).

Almost surely, 2^16905995208 is an apocalyptic number.

16905995208 is a gapful number since it is divisible by the number (18) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 16905995208, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (23704293600).

16905995208 is an abundant number, since it is smaller than the sum of its proper divisors (30502591992).

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

16905995208 is a wasteful number, since it uses less digits than its factorization.

16905995208 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7331 (or 7324 counting only the distinct ones).

The product of its (nonzero) digits is 1749600, while the sum is 54.

The spelling of 16905995208 in words is "sixteen billion, nine hundred five million, nine hundred ninety-five thousand, two hundred eight".