16154645161 has 4 divisors (see below), whose sum is σ = 16155925632. Its totient is φ = 16153364692.

The previous prime is 16154645159. The next prime is 16154645203.

16154645161 is nontrivially palindromic in base 10.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 16154645161 - 2¹ = 16154645159 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (16154745161) 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, 621121 + ... + 646606.

It is an arithmetic number, because the mean of its divisors is an integer number (4038981408).

Almost surely, 2^16154645161 is an apocalyptic number.

It is an amenable number.

16154645161 is a deficient number, since it is larger than the sum of its proper divisors (1280471).

16154645161 is a wasteful number, since it uses less digits than its factorization.

16154645161 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1280470.

The product of its digits is 86400, while the sum is 40.

The spelling of 16154645161 in words is "sixteen billion, one hundred fifty-four million, six hundred forty-five thousand, one hundred sixty-one".