165050516151666 has 48 divisors (see below), whose sum is σ = 359431857322200. Its totient is φ = 54737181126144.

The previous prime is 165050516151649. The next prime is 165050516151751. The reversal of 165050516151666 is 666151615050561.

It can be written as a sum of positive squares in 4 ways, for example, as 138801503774025 + 26249012377641 = 11781405^2 + 5123379^2 .

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 26907751 + ... + 32467338.

Almost surely, 2^{165050516151666} is an apocalyptic number.

165050516151666 is an abundant number, since it is smaller than the sum of its proper divisors (194381341170534).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

165050516151666 is a wasteful number, since it uses less digits than its factorization.

165050516151666 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 59375883 (or 59375880 counting only the distinct ones).

The product of its (nonzero) digits is 4860000, while the sum is 54.

The spelling of 165050516151666 in words is "one hundred sixty-five trillion, fifty billion, five hundred sixteen million, one hundred fifty-one thousand, six hundred sixty-six".