166612833 has 12 divisors (see below), whose sum is σ = 240894420. Its totient is φ = 110968416.

The previous prime is 166612811. The next prime is 166612883. The reversal of 166612833 is 338216661.

It can be written as a sum of positive squares in 2 ways, for example, as 6640929 + 159971904 = 2577^2 + 12648^2 .

It is not a de Polignac number, because 166612833 - 2⁶ = 166612769 is a prime.

It is a super-2 number, since 2×166612833² = 55519672240571778, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (166612883) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1635 + ... + 18327.

It is an arithmetic number, because the mean of its divisors is an integer number (20074535).

Almost surely, 2^166612833 is an apocalyptic number.

It is an amenable number.

166612833 is a deficient number, since it is larger than the sum of its proper divisors (74281587).

166612833 is a wasteful number, since it uses less digits than its factorization.

166612833 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17808 (or 17805 counting only the distinct ones).

The product of its digits is 31104, while the sum is 36.

The square root of 166612833 is about 12907.8593500239. The cubic root of 166612833 is about 550.2619501515.

The spelling of 166612833 in words is "one hundred sixty-six million, six hundred twelve thousand, eight hundred thirty-three".