166020245323 has 4 divisors (see below), whose sum is σ = 166241311648. Its totient is φ = 165799179000.

The previous prime is 166020245299. The next prime is 166020245329. The reversal of 166020245323 is 323542020661.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 166020245323 - 2²⁹ = 165483374411 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (166020245329) 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, 110532036 + ... + 110533537.

It is an arithmetic number, because the mean of its divisors is an integer number (41560327912).

Almost surely, 2^166020245323 is an apocalyptic number.

166020245323 is a deficient number, since it is larger than the sum of its proper divisors (221066325).

166020245323 is an equidigital number, since it uses as much as digits as its factorization.

166020245323 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 221066324.

The product of its (nonzero) digits is 51840, while the sum is 34.

Adding to 166020245323 its reverse (323542020661), we get a palindrome (489562265984).

The spelling of 166020245323 in words is "one hundred sixty-six billion, twenty million, two hundred forty-five thousand, three hundred twenty-three".