166936253 has 8 divisors (see below), whose sum is σ = 182413920. Its totient is φ = 151508880.

The previous prime is 166936249. The next prime is 166936279. The reversal of 166936253 is 352639661.

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

It is a cyclic number.

It is not a de Polignac number, because 166936253 - 2² = 166936249 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 166936253.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (166936283) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5450 + ... + 19067.

It is an arithmetic number, because the mean of its divisors is an integer number (22801740).

Almost surely, 2^166936253 is an apocalyptic number.

It is an amenable number.

166936253 is a deficient number, since it is larger than the sum of its proper divisors (15477667).

166936253 is a wasteful number, since it uses less digits than its factorization.

166936253 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 25147.

The product of its digits is 174960, while the sum is 41.

The square root of 166936253 is about 12920.3813024229. The cubic root of 166936253 is about 550.6177664637.

The spelling of 166936253 in words is "one hundred sixty-six million, nine hundred thirty-six thousand, two hundred fifty-three".