166335241 has 4 divisors (see below), whose sum is σ = 173567232. Its totient is φ = 159103252.

The previous prime is 166335217. The next prime is 166335251. The reversal of 166335241 is 142533661.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 166335241 - 2²⁷ = 32117513 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (166335251) 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, 3615961 + ... + 3616006.

It is an arithmetic number, because the mean of its divisors is an integer number (43391808).

Almost surely, 2^166335241 is an apocalyptic number.

It is an amenable number.

166335241 is a deficient number, since it is larger than the sum of its proper divisors (7231991).

166335241 is an equidigital number, since it uses as much as digits as its factorization.

166335241 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7231990.

The product of its digits is 12960, while the sum is 31.

The square root of 166335241 is about 12897.1020388303. The cubic root of 166335241 is about 549.9561849394.

The spelling of 166335241 in words is "one hundred sixty-six million, three hundred thirty-five thousand, two hundred forty-one".