16164923 has 4 divisors (see below), whose sum is σ = 16321968. Its totient is φ = 16007880.

The previous prime is 16164913. The next prime is 16164931. The reversal of 16164923 is 32946161.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 32946161 = 61 ⋅540101.

It is a cyclic number.

It is not a de Polignac number, because 16164923 - 2⁶ = 16164859 is a prime.

It is a super-2 number, since 2×16164923² = 522609471191858, which contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 16164923.

It is not an unprimeable number, because it can be changed into a prime (16164913) 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, 78368 + ... + 78573.

It is an arithmetic number, because the mean of its divisors is an integer number (4080492).

Almost surely, 2^16164923 is an apocalyptic number.

16164923 is a deficient number, since it is larger than the sum of its proper divisors (157045).

16164923 is a wasteful number, since it uses less digits than its factorization.

16164923 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 157044.

The product of its digits is 7776, while the sum is 32.

The square root of 16164923 is about 4020.5625228318. The cubic root of 16164923 is about 252.8470436255.

The spelling of 16164923 in words is "sixteen million, one hundred sixty-four thousand, nine hundred twenty-three".