166901255 has 8 divisors (see below), whose sum is σ = 202532400. Its totient is φ = 132020416.

The previous prime is 166901249. The next prime is 166901261. The reversal of 166901255 is 552109661.

It is an interprime number because it is at equal distance from previous prime (166901249) and next prime (166901261).

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 166901255 - 2⁴ = 166901239 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 187085 + ... + 187974.

It is an arithmetic number, because the mean of its divisors is an integer number (25316550).

Almost surely, 2^166901255 is an apocalyptic number.

166901255 is a deficient number, since it is larger than the sum of its proper divisors (35631145).

166901255 is an equidigital number, since it uses as much as digits as its factorization.

166901255 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 375153.

The product of its (nonzero) digits is 16200, while the sum is 35.

The square root of 166901255 is about 12919.0268596361. The cubic root of 166901255 is about 550.5792849734.

The spelling of 166901255 in words is "one hundred sixty-six million, nine hundred one thousand, two hundred fifty-five".