166516515153 has 8 divisors (see below), whose sum is σ = 246691133600. Its totient is φ = 111011010084.

The previous prime is 166516515133. The next prime is 166516515197. The reversal of 166516515153 is 351515615661.

166516515153 is a `hidden beast` number, since 16 + 65 + 1 + 65 + 1 + 515 + 3 = 666.

It is not a de Polignac number, because 166516515153 - 2⁶ = 166516515089 is a prime.

It is a super-2 number, since 2×166516515153² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 166516515099 and 166516515108.

It is not an unprimeable number, because it can be changed into a prime (166516515133) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3083639143 + ... + 3083639196.

It is an arithmetic number, because the mean of its divisors is an integer number (30836391700).

Almost surely, 2^166516515153 is an apocalyptic number.

It is an amenable number.

166516515153 is a deficient number, since it is larger than the sum of its proper divisors (80174618447).

166516515153 is an equidigital number, since it uses as much as digits as its factorization.

166516515153 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6167278348 (or 6167278342 counting only the distinct ones).

The product of its digits is 405000, while the sum is 45.

The spelling of 166516515153 in words is "one hundred sixty-six billion, five hundred sixteen million, five hundred fifteen thousand, one hundred fifty-three".