166464146 has 8 divisors (see below), whose sum is σ = 251987340. Its totient is φ = 82468368.

The previous prime is 166464143. The next prime is 166464167. The reversal of 166464146 is 641464661.

It can be written as a sum of positive squares in 2 ways, for example, as 162282121 + 4182025 = 12739^2 + 2045^2 .

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

It is not an unprimeable number, because it can be changed into a prime (166464143) 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, 381581 + ... + 382016.

Almost surely, 2^166464146 is an apocalyptic number.

166464146 is a deficient number, since it is larger than the sum of its proper divisors (85523194).

166464146 is a wasteful number, since it uses less digits than its factorization.

166464146 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 763708.

The product of its digits is 82944, while the sum is 38.

The square root of 166464146 is about 12902.0985114825. The cubic root of 166464146 is about 550.0982149673.

The spelling of 166464146 in words is "one hundred sixty-six million, four hundred sixty-four thousand, one hundred forty-six".