166044253 has 8 divisors (see below), whose sum is σ = 176238720. Its totient is φ = 155897280.

The previous prime is 166044251. The next prime is 166044289. The reversal of 166044253 is 352440661.

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 166044253 - 2¹ = 166044251 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (166044251) 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, 4533 + ... + 18778.

It is an arithmetic number, because the mean of its divisors is an integer number (22029840).

Almost surely, 2^166044253 is an apocalyptic number.

It is an amenable number.

166044253 is a deficient number, since it is larger than the sum of its proper divisors (10194467).

166044253 is a wasteful number, since it uses less digits than its factorization.

166044253 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 23747.

The product of its (nonzero) digits is 17280, while the sum is 31.

The square root of 166044253 is about 12885.8159617465. The cubic root of 166044253 is about 549.6352987184.

The spelling of 166044253 in words is "one hundred sixty-six million, forty-four thousand, two hundred fifty-three".