220726968199 has 4 divisors (see below), whose sum is σ = 220728071536. Its totient is φ = 220725864864.

The previous prime is 220726968179. The next prime is 220726968221. The reversal of 220726968199 is 991869627022.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length, and also an emirpimes, since its reverse is a distinct semiprime: 991869627022 = 2 ⋅495934813511.

It is a cyclic number.

It is not a de Polignac number, because 220726968199 - 2⁵ = 220726968167 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (220726968109) 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, 157899 + ... + 682924.

It is an arithmetic number, because the mean of its divisors is an integer number (55182017884).

Almost surely, 2^220726968199 is an apocalyptic number.

220726968199 is a deficient number, since it is larger than the sum of its proper divisors (1103337).

220726968199 is an equidigital number, since it uses as much as digits as its factorization.

220726968199 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1103336.

The product of its (nonzero) digits is 11757312, while the sum is 61.

The spelling of 220726968199 in words is "two hundred twenty billion, seven hundred twenty-six million, nine hundred sixty-eight thousand, one hundred ninety-nine".