16850661 has 16 divisors (see below), whose sum is σ = 23094720. Its totient is φ = 10924160.

The previous prime is 16850657. The next prime is 16850677. The reversal of 16850661 is 16605861.

It is a cyclic number.

It is not a de Polignac number, because 16850661 - 2² = 16850657 is a prime.

It is a super-2 number, since 2×16850661² = 567889552273842, which contains 22 as substring.

It is a Smith number, since the sum of its digits (33) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (16850641) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 20425 + ... + 21233.

It is an arithmetic number, because the mean of its divisors is an integer number (1443420).

Almost surely, 2^16850661 is an apocalyptic number.

It is an amenable number.

16850661 is a deficient number, since it is larger than the sum of its proper divisors (6244059).

16850661 is a wasteful number, since it uses less digits than its factorization.

16850661 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 996.

The product of its (nonzero) digits is 8640, while the sum is 33.

The square root of 16850661 is about 4104.9556635852. The cubic root of 16850661 is about 256.3730168020.

The spelling of 16850661 in words is "sixteen million, eight hundred fifty thousand, six hundred sixty-one".