220726968220 has 36 divisors (see below), whose sum is σ = 509496222312. Its totient is φ = 80264351200.

The previous prime is 220726968179. The next prime is 220726968221. The reversal of 220726968220 is 22869627022.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (220726968221) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 45602326 + ... + 45607165.

It is an arithmetic number, because the mean of its divisors is an integer number (14152672842).

Almost surely, 2^220726968220 is an apocalyptic number.

220726968220 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

220726968220 is an abundant number, since it is smaller than the sum of its proper divisors (288769254092).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

220726968220 is a wasteful number, since it uses less digits than its factorization.

220726968220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 91209522 (or 91209509 counting only the distinct ones).

The product of its (nonzero) digits is 580608, while the sum is 46.

The spelling of 220726968220 in words is "two hundred twenty billion, seven hundred twenty-six million, nine hundred sixty-eight thousand, two hundred twenty".