16164878399 has 2 divisors, whose sum is σ = 16164878400. Its totient is φ = 16164878398.

The previous prime is 16164878363. The next prime is 16164878461. The reversal of 16164878399 is 99387846161.

16164878399 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an a-pointer prime, because the next prime (16164878461) can be obtained adding 16164878399 to its sum of digits (62).

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-16164878399 is a prime.

It is a super-2 number, since 2×16164878399² (a number of 21 digits) contains 22 as substring.

It is a Sophie Germain prime.

It is a zygodrome in base 2.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (16164874399) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 8082439199 + 8082439200.

It is an arithmetic number, because the mean of its divisors is an integer number (8082439200).

Almost surely, 2^16164878399 is an apocalyptic number.

16164878399 is a deficient number, since it is larger than the sum of its proper divisors (1).

16164878399 is an equidigital number, since it uses as much as digits as its factorization.

16164878399 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 15676416, while the sum is 62.

The spelling of 16164878399 in words is "sixteen billion, one hundred sixty-four million, eight hundred seventy-eight thousand, three hundred ninety-nine".