166342250 has 16 divisors (see below), whose sum is σ = 311393160. Its totient is φ = 66536800.

The previous prime is 166342243. The next prime is 166342301. The reversal of 166342250 is 52243661.

It can be written as a sum of positive squares in 4 ways, for example, as 13300609 + 153041641 = 3647^2 + 12371^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 332435 + ... + 332934.

Almost surely, 2^166342250 is an apocalyptic number.

166342250 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

166342250 is a deficient number, since it is larger than the sum of its proper divisors (145050910).

166342250 is an equidigital number, since it uses as much as digits as its factorization.

166342250 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 665386 (or 665376 counting only the distinct ones).

The product of its (nonzero) digits is 8640, while the sum is 29.

The square root of 166342250 is about 12897.3737636776. The cubic root of 166342250 is about 549.9639094776.

The spelling of 166342250 in words is "one hundred sixty-six million, three hundred forty-two thousand, two hundred fifty".