166320142 has 4 divisors (see below), whose sum is σ = 249480216. Its totient is φ = 83160070.

The previous prime is 166320113. The next prime is 166320179. The reversal of 166320142 is 241023661.

166320142 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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 polite number, since it can be written as a sum of consecutive naturals, namely, 41580034 + ... + 41580037.

It is an arithmetic number, because the mean of its divisors is an integer number (62370054).

Almost surely, 2^166320142 is an apocalyptic number.

166320142 is a deficient number, since it is larger than the sum of its proper divisors (83160074).

166320142 is an equidigital number, since it uses as much as digits as its factorization.

166320142 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 83160073.

The product of its (nonzero) digits is 1728, while the sum is 25.

The square root of 166320142 is about 12896.5166614865. The cubic root of 166320142 is about 549.9395437681.

The spelling of 166320142 in words is "one hundred sixty-six million, three hundred twenty thousand, one hundred forty-two".