166085755 has 32 divisors (see below), whose sum is σ = 232243200. Its totient is φ = 112828800.

The previous prime is 166085741. The next prime is 166085761. The reversal of 166085755 is 557580661.

It is not a de Polignac number, because 166085755 - 2⁵ = 166085723 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 47766 + ... + 51124.

It is an arithmetic number, because the mean of its divisors is an integer number (7257600).

Almost surely, 2^166085755 is an apocalyptic number.

166085755 is a deficient number, since it is larger than the sum of its proper divisors (66157445).

166085755 is a wasteful number, since it uses less digits than its factorization.

166085755 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3435.

The product of its (nonzero) digits is 252000, while the sum is 43.

The square root of 166085755 is about 12887.4262364523. The cubic root of 166085755 is about 549.6810878449.

The spelling of 166085755 in words is "one hundred sixty-six million, eighty-five thousand, seven hundred fifty-five".