220710205689 has 16 divisors (see below), whose sum is σ = 296883840000. Its totient is φ = 145843978896.

The previous prime is 220710205657. The next prime is 220710205699. The reversal of 220710205689 is 986502017022.

It is not a de Polignac number, because 220710205689 - 2⁵ = 220710205657 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 220710205689.

It is not an unprimeable number, because it can be changed into a prime (220710205619) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 545839 + ... + 859860.

It is an arithmetic number, because the mean of its divisors is an integer number (18555240000).

Almost surely, 2^220710205689 is an apocalyptic number.

It is an amenable number.

220710205689 is a deficient number, since it is larger than the sum of its proper divisors (76173634311).

220710205689 is a wasteful number, since it uses less digits than its factorization.

220710205689 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1406164.

The product of its (nonzero) digits is 120960, while the sum is 42.

The spelling of 220710205689 in words is "two hundred twenty billion, seven hundred ten million, two hundred five thousand, six hundred eighty-nine".