255606166 has 8 divisors (see below), whose sum is σ = 384764904. Its totient is φ = 127351200.

The previous prime is 255606149. The next prime is 255606173. The reversal of 255606166 is 661606552.

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

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 225235 + ... + 226366.

It is an arithmetic number, because the mean of its divisors is an integer number (48095613).

Almost surely, 2^255606166 is an apocalyptic number.

255606166 is a deficient number, since it is larger than the sum of its proper divisors (129158738).

255606166 is a wasteful number, since it uses less digits than its factorization.

255606166 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 451886.

The product of its (nonzero) digits is 64800, while the sum is 37.

The square root of 255606166 is about 15987.6879504198. The cubic root of 255606166 is about 634.6346429896.

The spelling of 255606166 in words is "two hundred fifty-five million, six hundred six thousand, one hundred sixty-six".