220168097 has 4 divisors (see below), whose sum is σ = 223454256. Its totient is φ = 216881940.

The previous prime is 220168079. The next prime is 220168133. The reversal of 220168097 is 790861022.

It is a happy number.

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 220168097 - 2¹⁸ = 219905953 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (220168027) 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, 1642979 + ... + 1643112.

It is an arithmetic number, because the mean of its divisors is an integer number (55863564).

Almost surely, 2^220168097 is an apocalyptic number.

It is an amenable number.

220168097 is a deficient number, since it is larger than the sum of its proper divisors (3286159).

220168097 is an equidigital number, since it uses as much as digits as its factorization.

220168097 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3286158.

The product of its (nonzero) digits is 12096, while the sum is 35.

The square root of 220168097 is about 14838.0624408984. The cubic root of 220168097 is about 603.8347875328.

The spelling of 220168097 in words is "two hundred twenty million, one hundred sixty-eight thousand, ninety-seven".