16966010161 has 4 divisors (see below), whose sum is σ = 16966271524. Its totient is φ = 16965748800.

The previous prime is 16966010143. The next prime is 16966010177. The reversal of 16966010161 is 16101066961.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It can be written as a sum of positive squares in 2 ways, for example, as 14293637136 + 2672373025 = 119556^2 + 51695^2 .

It is a cyclic number.

It is not a de Polignac number, because 16966010161 - 2²³ = 16957621553 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 16966010161.

It is not an unprimeable number, because it can be changed into a prime (16966010111) 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, 49501 + ... + 190741.

It is an arithmetic number, because the mean of its divisors is an integer number (4241567881).

Almost surely, 2^16966010161 is an apocalyptic number.

It is an amenable number.

16966010161 is a deficient number, since it is larger than the sum of its proper divisors (261363).

16966010161 is a wasteful number, since it uses less digits than its factorization.

16966010161 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 261362.

The product of its (nonzero) digits is 11664, while the sum is 37.

The spelling of 16966010161 in words is "sixteen billion, nine hundred sixty-six million, ten thousand, one hundred sixty-one".