16164444309 has 32 divisors (see below), whose sum is σ = 23726814720. Its totient is φ = 9726469632.

The previous prime is 16164444281. The next prime is 16164444319. The reversal of 16164444309 is 90344446161.

It is not a de Polignac number, because 16164444309 - 2⁵ = 16164444277 is a prime.

It is a super-2 number, since 2×16164444309² (a number of 21 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (16164444319) by changing a digit.

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 31 ways as a sum of consecutive naturals, for example, 2263857 + ... + 2270985.

It is an arithmetic number, because the mean of its divisors is an integer number (741462960).

Almost surely, 2^16164444309 is an apocalyptic number.

It is an amenable number.

16164444309 is a deficient number, since it is larger than the sum of its proper divisors (7562370411).

16164444309 is a wasteful number, since it uses less digits than its factorization.

16164444309 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8429.

The product of its (nonzero) digits is 248832, while the sum is 42.

The spelling of 16164444309 in words is "sixteen billion, one hundred sixty-four million, four hundred forty-four thousand, three hundred nine".