16166146 has 4 divisors (see below), whose sum is σ = 24249222. Its totient is φ = 8083072.

The previous prime is 16166141. The next prime is 16166147. The reversal of 16166146 is 64166161.

16166146 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 64166161 = 857 ⋅74873.

It can be written as a sum of positive squares in only one way, i.e., 14175225 + 1990921 = 3765^2 + 1411^2 .

It is a super-2 number, since 2×16166146² = 522688552986632, which contains 22 as substring.

It is a Smith number, since the sum of its digits (31) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is not an unprimeable number, because it can be changed into a prime (16166141) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4041535 + ... + 4041538.

Almost surely, 2^16166146 is an apocalyptic number.

16166146 is a deficient number, since it is larger than the sum of its proper divisors (8083076).

16166146 is an equidigital number, since it uses as much as digits as its factorization.

16166146 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8083075.

The product of its digits is 5184, while the sum is 31.

The square root of 16166146 is about 4020.7146131005. The cubic root of 16166146 is about 252.8534200686.

The spelling of 16166146 in words is "sixteen million, one hundred sixty-six thousand, one hundred forty-six".