16506164323 has 16 divisors (see below), whose sum is σ = 18369918720. Its totient is φ = 14704554400.

The previous prime is 16506164299. The next prime is 16506164333. The reversal of 16506164323 is 32346160561.

It is a cyclic number.

It is not a de Polignac number, because 16506164323 - 2¹³ = 16506156131 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (16506164333) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 165618 + ... + 245848.

It is an arithmetic number, because the mean of its divisors is an integer number (1148119920).

Almost surely, 2^16506164323 is an apocalyptic number.

16506164323 is a deficient number, since it is larger than the sum of its proper divisors (1863754397).

16506164323 is a wasteful number, since it uses less digits than its factorization.

16506164323 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 80618.

The product of its (nonzero) digits is 77760, while the sum is 37.

The spelling of 16506164323 in words is "sixteen billion, five hundred six million, one hundred sixty-four thousand, three hundred twenty-three".