166422135 has 32 divisors (see below), whose sum is σ = 303118848. Its totient is φ = 77179520.

The previous prime is 166422127. The next prime is 166422143. The reversal of 166422135 is 531224661.

It is an interprime number because it is at equal distance from previous prime (166422127) and next prime (166422143).

It is not a de Polignac number, because 166422135 - 2³ = 166422127 is a prime.

It is a congruent number.

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, 18132 + ... + 25721.

It is an arithmetic number, because the mean of its divisors is an integer number (9472464).

Almost surely, 2^166422135 is an apocalyptic number.

166422135 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

166422135 is a deficient number, since it is larger than the sum of its proper divisors (136696713).

166422135 is a wasteful number, since it uses less digits than its factorization.

166422135 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 43895.

The product of its digits is 8640, while the sum is 30.

The square root of 166422135 is about 12900.4703402628. The cubic root of 166422135 is about 550.0519344898.

Adding to 166422135 its reverse (531224661), we get a palindrome (697646796).

The spelling of 166422135 in words is "one hundred sixty-six million, four hundred twenty-two thousand, one hundred thirty-five".