220709168923 has 2 divisors, whose sum is σ = 220709168924. Its totient is φ = 220709168922.

The previous prime is 220709168921. The next prime is 220709168951. The reversal of 220709168923 is 329861907022.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 220709168923 - 2¹ = 220709168921 is a prime.

Together with 220709168921, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (220709168921) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 110354584461 + 110354584462.

It is an arithmetic number, because the mean of its divisors is an integer number (110354584462).

Almost surely, 2^220709168923 is an apocalyptic number.

220709168923 is a deficient number, since it is larger than the sum of its proper divisors (1).

220709168923 is an equidigital number, since it uses as much as digits as its factorization.

220709168923 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 653184, while the sum is 49.

The spelling of 220709168923 in words is "two hundred twenty billion, seven hundred nine million, one hundred sixty-eight thousand, nine hundred twenty-three".