166235255 has 8 divisors (see below), whose sum is σ = 200318400. Its totient is φ = 132430816.

The previous prime is 166235249. The next prime is 166235261. The reversal of 166235255 is 552532661.

It is an interprime number because it is at equal distance from previous prime (166235249) and next prime (166235261).

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 166235255 - 2¹⁰ = 166234231 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, 68360 + ... + 70749.

It is an arithmetic number, because the mean of its divisors is an integer number (25039800).

Almost surely, 2^166235255 is an apocalyptic number.

166235255 is a deficient number, since it is larger than the sum of its proper divisors (34083145).

166235255 is a wasteful number, since it uses less digits than its factorization.

166235255 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 139353.

The product of its digits is 54000, while the sum is 35.

The square root of 166235255 is about 12893.2251589740. The cubic root of 166235255 is about 549.8459678853.

The spelling of 166235255 in words is "one hundred sixty-six million, two hundred thirty-five thousand, two hundred fifty-five".