166258142 has 4 divisors (see below), whose sum is σ = 249387216. Its totient is φ = 83129070.

The previous prime is 166258139. The next prime is 166258163. The reversal of 166258142 is 241852661.

It is a semiprime because it is the product of two 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 as a sum of consecutive naturals, namely, 41564534 + ... + 41564537.

It is an arithmetic number, because the mean of its divisors is an integer number (62346804).

Almost surely, 2^166258142 is an apocalyptic number.

166258142 is a deficient number, since it is larger than the sum of its proper divisors (83129074).

166258142 is an equidigital number, since it uses as much as digits as its factorization.

166258142 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 83129073.

The product of its digits is 23040, while the sum is 35.

The square root of 166258142 is about 12894.1126875796. The cubic root of 166258142 is about 549.8712006941.

The spelling of 166258142 in words is "one hundred sixty-six million, two hundred fifty-eight thousand, one hundred forty-two".