16626157 has 8 divisors (see below), whose sum is σ = 16914560. Its totient is φ = 16340400.

The previous prime is 16626149. The next prime is 16626173. The reversal of 16626157 is 75162661.

It is a happy number.

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 16626157 - 2³ = 16626149 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (16626107) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 15019 + ... + 16087.

It is an arithmetic number, because the mean of its divisors is an integer number (2114320).

Almost surely, 2^16626157 is an apocalyptic number.

It is an amenable number.

16626157 is a deficient number, since it is larger than the sum of its proper divisors (288403).

16626157 is a wasteful number, since it uses less digits than its factorization.

16626157 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1323.

The product of its digits is 15120, while the sum is 34.

The square root of 16626157 is about 4077.5184855498. The cubic root of 16626157 is about 255.2293566347.

The spelling of 16626157 in words is "sixteen million, six hundred twenty-six thousand, one hundred fifty-seven".