16622057 has 4 divisors (see below), whose sum is σ = 16632660. Its totient is φ = 16611456.

The previous prime is 16622051. The next prime is 16622071. The reversal of 16622057 is 75022661.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It can be written as a sum of positive squares in 2 ways, for example, as 14714896 + 1907161 = 3836^2 + 1381^2 .

It is a cyclic number.

It is not a de Polignac number, because 16622057 - 2⁴ = 16622041 is a prime.

It is a super-2 number, since 2×16622057² = 552585557822498, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (16622051) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2432 + ... + 6257.

It is an arithmetic number, because the mean of its divisors is an integer number (4158165).

Almost surely, 2^16622057 is an apocalyptic number.

It is an amenable number.

16622057 is a deficient number, since it is larger than the sum of its proper divisors (10603).

16622057 is an equidigital number, since it uses as much as digits as its factorization.

16622057 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10602.

The product of its (nonzero) digits is 5040, while the sum is 29.

The square root of 16622057 is about 4077.0156977868. The cubic root of 16622057 is about 255.2083751096.

The spelling of 16622057 in words is "sixteen million, six hundred twenty-two thousand, fifty-seven".