166201298 has 4 divisors (see below), whose sum is σ = 249301950. Its totient is φ = 83100648.

The previous prime is 166201283. The next prime is 166201307. The reversal of 166201298 is 892102661.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 892102661 = 2131 ⋅418631.

It can be written as a sum of positive squares in only one way, i.e., 85507009 + 80694289 = 9247^2 + 8983^2 .

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, 41550323 + ... + 41550326.

Almost surely, 2^166201298 is an apocalyptic number.

166201298 is a deficient number, since it is larger than the sum of its proper divisors (83100652).

166201298 is an equidigital number, since it uses as much as digits as its factorization.

166201298 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 83100651.

The product of its (nonzero) digits is 10368, while the sum is 35.

The square root of 166201298 is about 12891.9082373402. The cubic root of 166201298 is about 549.8085261866.

The spelling of 166201298 in words is "one hundred sixty-six million, two hundred one thousand, two hundred ninety-eight".