220709169268 has 24 divisors (see below), whose sum is σ = 441474301184. Its totient is φ = 94577652000.

The previous prime is 220709169193. The next prime is 220709169269. The reversal of 220709169268 is 862961907022.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (220709169269) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 273063 + ... + 718318.

Almost surely, 2^220709169268 is an apocalyptic number.

220709169268 is a gapful number since it is divisible by the number (28) formed by its first and last digit.

It is an amenable number.

220709169268 is an abundant number, since it is smaller than the sum of its proper divisors (220765131916).

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

220709169268 is a wasteful number, since it uses less digits than its factorization.

220709169268 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 999343 (or 999341 counting only the distinct ones).

The product of its (nonzero) digits is 1306368, while the sum is 52.

The spelling of 220709169268 in words is "two hundred twenty billion, seven hundred nine million, one hundred sixty-nine thousand, two hundred sixty-eight".