16855899607 has 8 divisors (see below), whose sum is σ = 17516419200. Its totient is φ = 16202678880.

The previous prime is 16855899583. The next prime is 16855899637. The reversal of 16855899607 is 70699855861.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 16855899607 - 2⁷ = 16855899479 is a prime.

It is a super-2 number, since 2×16855899607² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (16855899637) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1820008 + ... + 1829245.

It is an arithmetic number, because the mean of its divisors is an integer number (2189552400).

Almost surely, 2^16855899607 is an apocalyptic number.

16855899607 is a deficient number, since it is larger than the sum of its proper divisors (660519593).

16855899607 is a wasteful number, since it uses less digits than its factorization.

16855899607 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3649433.

The product of its (nonzero) digits is 32659200, while the sum is 64.

The spelling of 16855899607 in words is "sixteen billion, eight hundred fifty-five million, eight hundred ninety-nine thousand, six hundred seven".