16164011223 has 12 divisors (see below), whose sum is σ = 23643561760. Its totient is φ = 10639601856.

The previous prime is 16164011207. The next prime is 16164011273. The reversal of 16164011223 is 32211046161.

It is a happy number.

16164011223 is a `hidden beast` number, since 1 + 6 + 1 + 640 + 1 + 12 + 2 + 3 = 666.

It is not a de Polignac number, because 16164011223 - 2⁴ = 16164011207 is a prime.

It is a super-2 number, since 2×16164011223² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (16164011273) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 11366386 + ... + 11367807.

Almost surely, 2^16164011223 is an apocalyptic number.

16164011223 is a deficient number, since it is larger than the sum of its proper divisors (7479550537).

16164011223 is a wasteful number, since it uses less digits than its factorization.

16164011223 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 22734278 (or 22734275 counting only the distinct ones).

The product of its (nonzero) digits is 1728, while the sum is 27.

Adding to 16164011223 its reverse (32211046161), we get a palindrome (48375057384).

The spelling of 16164011223 in words is "sixteen billion, one hundred sixty-four million, eleven thousand, two hundred twenty-three".