166070243 has 8 divisors (see below), whose sum is σ = 169114176. Its totient is φ = 163036800.

The previous prime is 166070227. The next prime is 166070251. The reversal of 166070243 is 342070661.

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

It is a cyclic number.

It is not a de Polignac number, because 166070243 - 2⁴ = 166070227 is a prime.

It is a super-2 number, since 2×166070243² = 55158651220158098, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (166070273) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 33878 + ... + 38468.

It is an arithmetic number, because the mean of its divisors is an integer number (21139272).

Almost surely, 2^166070243 is an apocalyptic number.

166070243 is a deficient number, since it is larger than the sum of its proper divisors (3043933).

166070243 is an equidigital number, since it uses as much as digits as its factorization.

166070243 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5245.

The product of its (nonzero) digits is 6048, while the sum is 29.

The square root of 166070243 is about 12886.8243954824. The cubic root of 166070243 is about 549.6639743594.

The spelling of 166070243 in words is "one hundred sixty-six million, seventy thousand, two hundred forty-three".