166464135 has 12 divisors (see below), whose sum is σ = 288537912. Its totient is φ = 88780848.

The previous prime is 166464131. The next prime is 166464143. The reversal of 166464135 is 531464661.

It is a happy number.

166464135 is a `hidden beast` number, since 1 + 6 + 6 + 4 + 641 + 3 + 5 = 666.

It is not a de Polignac number, because 166464135 - 2² = 166464131 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 166464135.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (166464131) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1849557 + ... + 1849646.

It is an arithmetic number, because the mean of its divisors is an integer number (24044826).

Almost surely, 2^166464135 is an apocalyptic number.

166464135 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

166464135 is a deficient number, since it is larger than the sum of its proper divisors (122073777).

166464135 is a wasteful number, since it uses less digits than its factorization.

166464135 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3699214 (or 3699211 counting only the distinct ones).

The product of its digits is 51840, while the sum is 36.

The square root of 166464135 is about 12902.0980851953. The cubic root of 166464135 is about 550.0982028504.

The spelling of 166464135 in words is "one hundred sixty-six million, four hundred sixty-four thousand, one hundred thirty-five".