16164507205 has 64 divisors (see below), whose sum is σ = 25639649280. Its totient is φ = 9471513600.

The previous prime is 16164507199. The next prime is 16164507211. The reversal of 16164507205 is 50270546161.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (16164507199) and next prime (16164507211).

It is not a de Polignac number, because 16164507205 - 2⁵ = 16164507173 is a prime.

It is a super-2 number, since 2×16164507205² (a number of 21 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 8370090 + ... + 8372020.

It is an arithmetic number, because the mean of its divisors is an integer number (400619520).

Almost surely, 2^16164507205 is an apocalyptic number.

It is an amenable number.

16164507205 is a deficient number, since it is larger than the sum of its proper divisors (9475142075).

16164507205 is a wasteful number, since it uses less digits than its factorization.

16164507205 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3250.

The product of its (nonzero) digits is 50400, while the sum is 37.

The spelling of 16164507205 in words is "sixteen billion, one hundred sixty-four million, five hundred seven thousand, two hundred five".