16166123 has 2 divisors, whose sum is σ = 16166124. Its totient is φ = 16166122.

The previous prime is 16166107. The next prime is 16166141. The reversal of 16166123 is 32166161.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 16166123 - 2⁴ = 16166107 is a prime.

It is a super-2 number, since 2×16166123² = 522687065702258, which contains 22 as substring.

It is a Sophie Germain prime.

It is a junction number, because it is equal to n+sod(n) for n = 16166092 and 16166101.

It is not a weakly prime, because it can be changed into another prime (16166153) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 8083061 + 8083062.

It is an arithmetic number, because the mean of its divisors is an integer number (8083062).

Almost surely, 2^16166123 is an apocalyptic number.

16166123 is a deficient number, since it is larger than the sum of its proper divisors (1).

16166123 is an equidigital number, since it uses as much as digits as its factorization.

16166123 is an evil number, because the sum of its binary digits is even.

The product of its digits is 1296, while the sum is 26.

The square root of 16166123 is about 4020.7117529114. The cubic root of 16166123 is about 252.8533001549.

The spelling of 16166123 in words is "sixteen million, one hundred sixty-six thousand, one hundred twenty-three".