166442830 has 8 divisors (see below), whose sum is σ = 299597112. Its totient is φ = 66577128.

The previous prime is 166442827. The next prime is 166442833. The reversal of 166442830 is 38244661.

It is an interprime number because it is at equal distance from previous prime (166442827) and next prime (166442833).

It is a sphenic number, since it is the product of 3 distinct primes.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (166442833) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 8322132 + ... + 8322151.

It is an arithmetic number, because the mean of its divisors is an integer number (37449639).

Almost surely, 2^166442830 is an apocalyptic number.

166442830 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

166442830 is a deficient number, since it is larger than the sum of its proper divisors (133154282).

166442830 is a wasteful number, since it uses less digits than its factorization.

166442830 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16644290.

The product of its (nonzero) digits is 27648, while the sum is 34.

The square root of 166442830 is about 12901.2724178664. The cubic root of 166442830 is about 550.0747336464.

The spelling of 166442830 in words is "one hundred sixty-six million, four hundred forty-two thousand, eight hundred thirty".