16396918163 has 4 divisors (see below), whose sum is σ = 16470447168. Its totient is φ = 16323389160.

The previous prime is 16396918151. The next prime is 16396918169. The reversal of 16396918163 is 36181969361.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 36181969361 = 257 ⋅140785873.

It is a cyclic number.

It is not a de Polignac number, because 16396918163 - 2¹⁰ = 16396917139 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (16396918169) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 36764168 + ... + 36764613.

It is an arithmetic number, because the mean of its divisors is an integer number (4117611792).

Almost surely, 2^16396918163 is an apocalyptic number.

16396918163 is a deficient number, since it is larger than the sum of its proper divisors (73529005).

16396918163 is an equidigital number, since it uses as much as digits as its factorization.

16396918163 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 73529004.

The product of its digits is 1259712, while the sum is 53.

The spelling of 16396918163 in words is "sixteen billion, three hundred ninety-six million, nine hundred eighteen thousand, one hundred sixty-three".