220982578869 has 16 divisors (see below), whose sum is σ = 317424744000. Its totient is φ = 135939382656.

The previous prime is 220982578849. The next prime is 220982578871. The reversal of 220982578869 is 968875289022.

It is not a de Polignac number, because 220982578869 - 2¹⁹ = 220982054581 is a prime.

It is a super-2 number, since 2×220982578869² (a number of 23 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (220982578849) 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, 931719 + ... + 1144580.

It is an arithmetic number, because the mean of its divisors is an integer number (19839046500).

Almost surely, 2^220982578869 is an apocalyptic number.

It is an amenable number.

220982578869 is a deficient number, since it is larger than the sum of its proper divisors (96442165131).

220982578869 is a wasteful number, since it uses less digits than its factorization.

220982578869 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2079044.

The product of its (nonzero) digits is 69672960, while the sum is 66.

The spelling of 220982578869 in words is "two hundred twenty billion, nine hundred eighty-two million, five hundred seventy-eight thousand, eight hundred sixty-nine".