16622199 has 16 divisors (see below), whose sum is σ = 26864640. Its totient is φ = 10073880.

The previous prime is 16622159. The next prime is 16622201. The reversal of 16622199 is 99122661.

16622199 is a `hidden beast` number, since 16 + 622 + 19 + 9 = 666.

It is not a de Polignac number, because 16622199 - 2⁷ = 16622071 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (16622159) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 27687 + ... + 28280.

It is an arithmetic number, because the mean of its divisors is an integer number (1679040).

Almost surely, 2^16622199 is an apocalyptic number.

16622199 is a deficient number, since it is larger than the sum of its proper divisors (10242441).

16622199 is a wasteful number, since it uses less digits than its factorization.

16622199 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 55987 (or 55981 counting only the distinct ones).

The product of its digits is 11664, while the sum is 36.

The square root of 16622199 is about 4077.0331124483. The cubic root of 16622199 is about 255.2091018445.

The spelling of 16622199 in words is "sixteen million, six hundred twenty-two thousand, one hundred ninety-nine".