16622855 has 16 divisors (see below), whose sum is σ = 21228480. Its totient is φ = 12452352.

The previous prime is 16622843. The next prime is 16622857. The reversal of 16622855 is 55822661.

It is a cyclic number.

It is not a de Polignac number, because 16622855 - 2⁴ = 16622839 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (16622857) 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, 22502 + ... + 23228.

It is an arithmetic number, because the mean of its divisors is an integer number (1326780).

Almost surely, 2^16622855 is an apocalyptic number.

16622855 is a deficient number, since it is larger than the sum of its proper divisors (4605625).

16622855 is a wasteful number, since it uses less digits than its factorization.

16622855 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1018.

The product of its digits is 28800, while the sum is 35.

The square root of 16622855 is about 4077.1135623134. The cubic root of 16622855 is about 255.2124591012.

The spelling of 16622855 in words is "sixteen million, six hundred twenty-two thousand, eight hundred fifty-five".