166299412 has 6 divisors (see below), whose sum is σ = 291023978. Its totient is φ = 83149704.

The previous prime is 166299401. The next prime is 166299431. The reversal of 166299412 is 214992661.

It can be written as a sum of positive squares in only one way, i.e., 146264836 + 20034576 = 12094^2 + 4476^2 .

It is a congruent number.

It is an unprimeable number.

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 as a sum of consecutive naturals, namely, 20787423 + ... + 20787430.

Almost surely, 2^166299412 is an apocalyptic number.

It is an amenable number.

166299412 is a deficient number, since it is larger than the sum of its proper divisors (124724566).

166299412 is a wasteful number, since it uses less digits than its factorization.

166299412 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 41574857 (or 41574855 counting only the distinct ones).

The product of its digits is 46656, while the sum is 40.

The square root of 166299412 is about 12895.7129310481. The cubic root of 166299412 is about 549.9166948209.

The spelling of 166299412 in words is "one hundred sixty-six million, two hundred ninety-nine thousand, four hundred twelve".