166455255 has 32 divisors (see below), whose sum is σ = 281304576. Its totient is φ = 83878784.

The previous prime is 166455253. The next prime is 166455271. The reversal of 166455255 is 552554661.

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 166455255 - 2¹ = 166455253 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (166455251) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 25729 + ... + 31541.

It is an arithmetic number, because the mean of its divisors is an integer number (8790768).

Almost surely, 2^166455255 is an apocalyptic number.

166455255 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

166455255 is a deficient number, since it is larger than the sum of its proper divisors (114849321).

166455255 is a wasteful number, since it uses less digits than its factorization.

166455255 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5927.

The product of its digits is 180000, while the sum is 39.

The square root of 166455255 is about 12901.7539505294. The cubic root of 166455255 is about 550.0884210459.

The spelling of 166455255 in words is "one hundred sixty-six million, four hundred fifty-five thousand, two hundred fifty-five".