204166263 has 8 divisors (see below), whose sum is σ = 311110528. Its totient is φ = 116666424.

The previous prime is 204166247. The next prime is 204166273. The reversal of 204166263 is 362661402.

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

It is not a de Polignac number, because 204166263 - 2⁴ = 204166247 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 204166263.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (204166223) 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, 4861081 + ... + 4861122.

It is an arithmetic number, because the mean of its divisors is an integer number (38888816).

Almost surely, 2^204166263 is an apocalyptic number.

204166263 is a deficient number, since it is larger than the sum of its proper divisors (106944265).

204166263 is an equidigital number, since it uses as much as digits as its factorization.

204166263 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9722213.

The product of its (nonzero) digits is 10368, while the sum is 30.

The square root of 204166263 is about 14288.6760408374. The cubic root of 204166263 is about 588.8364149372.

The spelling of 204166263 in words is "two hundred four million, one hundred sixty-six thousand, two hundred sixty-three".