166342887 has 12 divisors (see below), whose sum is σ = 240676800. Its totient is φ = 110708928.

The previous prime is 166342879. The next prime is 166342937. The reversal of 166342887 is 788243661.

166342887 is a `hidden beast` number, since 1 + 6 + 634 + 2 + 8 + 8 + 7 = 666.

It is not a de Polignac number, because 166342887 - 2³ = 166342879 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (166342817) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 9762 + ... + 20687.

It is an arithmetic number, because the mean of its divisors is an integer number (20056400).

Almost surely, 2^166342887 is an apocalyptic number.

166342887 is a deficient number, since it is larger than the sum of its proper divisors (74333913).

166342887 is a wasteful number, since it uses less digits than its factorization.

166342887 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 31062 (or 31059 counting only the distinct ones).

The product of its digits is 387072, while the sum is 45.

The square root of 166342887 is about 12897.3984586040. The cubic root of 166342887 is about 549.9646114972.

The spelling of 166342887 in words is "one hundred sixty-six million, three hundred forty-two thousand, eight hundred eighty-seven".