16650117883777 has 16 divisors (see below), whose sum is σ = 20059204403200. Its totient is φ = 13500829982160.

The previous prime is 16650117883769. The next prime is 16650117883781. The reversal of 16650117883777 is 77738871105661.

It is a cyclic number.

It is not a de Polignac number, because 16650117883777 - 2³ = 16650117883769 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (16650117883747) 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, 90493377 + ... + 90677182.

It is an arithmetic number, because the mean of its divisors is an integer number (1253700275200).

Almost surely, 2^{16650117883777} is an apocalyptic number.

It is an amenable number.

16650117883777 is a deficient number, since it is larger than the sum of its proper divisors (3409086519423).

16650117883777 is a wasteful number, since it uses less digits than its factorization.

16650117883777 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 181171276.

The product of its (nonzero) digits is 82978560, while the sum is 67.

The spelling of 16650117883777 in words is "sixteen trillion, six hundred fifty billion, one hundred seventeen million, eight hundred eighty-three thousand, seven hundred seventy-seven".