16166664154 has 8 divisors (see below), whose sum is σ = 24350619348. Its totient is φ = 8049791040.

The previous prime is 16166664149. The next prime is 16166664179. The reversal of 16166664154 is 45146666161.

It can be written as a sum of positive squares in 2 ways, for example, as 12700163025 + 3466501129 = 112695^2 + 58877^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a super-2 number, since 2×16166664154² (a number of 21 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 16769917 + ... + 16770880.

Almost surely, 2^16166664154 is an apocalyptic number.

16166664154 is a deficient number, since it is larger than the sum of its proper divisors (8183955194).

16166664154 is a wasteful number, since it uses less digits than its factorization.

16166664154 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 33541040.

The product of its digits is 622080, while the sum is 46.

The spelling of 16166664154 in words is "sixteen billion, one hundred sixty-six million, six hundred sixty-four thousand, one hundred fifty-four".