166098241 has 4 divisors (see below), whose sum is σ = 167810692. Its totient is φ = 164385792.

The previous prime is 166098239. The next prime is 166098259. The reversal of 166098241 is 142890661.

It is a happy number.

166098241 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 142890661 = 17 ⋅8405333.

It can be written as a sum of positive squares in 2 ways, for example, as 66178225 + 99920016 = 8135^2 + 9996^2 .

It is a cyclic number.

It is not a de Polignac number, because 166098241 - 2¹ = 166098239 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 166098241.

It is not an unprimeable number, because it can be changed into a prime (166098221) 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, 856080 + ... + 856273.

It is an arithmetic number, because the mean of its divisors is an integer number (41952673).

Almost surely, 2^166098241 is an apocalyptic number.

It is an amenable number.

166098241 is a deficient number, since it is larger than the sum of its proper divisors (1712451).

166098241 is an equidigital number, since it uses as much as digits as its factorization.

166098241 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1712450.

The product of its (nonzero) digits is 20736, while the sum is 37.

The square root of 166098241 is about 12887.9106530112. The cubic root of 166098241 is about 549.6948621470.

The spelling of 166098241 in words is "one hundred sixty-six million, ninety-eight thousand, two hundred forty-one".