16164929309 has 2 divisors, whose sum is σ = 16164929310. Its totient is φ = 16164929308.

The previous prime is 16164929243. The next prime is 16164929311. The reversal of 16164929309 is 90392946161.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 14211024100 + 1953905209 = 119210^2 + 44203^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-16164929309 is a prime.

It is a super-2 number, since 2×16164929309² (a number of 21 digits) contains 22 as substring.

Together with 16164929311, it forms a pair of twin primes.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (16164929369) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 8082464654 + 8082464655.

It is an arithmetic number, because the mean of its divisors is an integer number (8082464655).

Almost surely, 2^16164929309 is an apocalyptic number.

It is an amenable number.

16164929309 is a deficient number, since it is larger than the sum of its proper divisors (1).

16164929309 is an equidigital number, since it uses as much as digits as its factorization.

16164929309 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 629856, while the sum is 50.

The spelling of 16164929309 in words is "sixteen billion, one hundred sixty-four million, nine hundred twenty-nine thousand, three hundred nine".