220388959779288 has 128 divisors (see below), whose sum is σ = 608355599155200. Its totient is φ = 66222040579200.

The previous prime is 220388959779283. The next prime is 220388959779299. The reversal of 220388959779288 is 882977959883022.

220388959779288 is digitally balanced in base 2 and base 4, because in such bases it contains all the possibile digits an equal number of times.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (220388959779283) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 53005798 + ... + 57012213.

It is an arithmetic number, because the mean of its divisors is an integer number (4752778118400).

Almost surely, 2^{220388959779288} is an apocalyptic number.

It is an amenable number.

220388959779288 is an abundant number, since it is smaller than the sum of its proper divisors (387966639375912).

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

220388959779288 is a wasteful number, since it uses less digits than its factorization.

220388959779288 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 110018253 (or 110018249 counting only the distinct ones).

The product of its (nonzero) digits is 17557585920, while the sum is 87.

The spelling of 220388959779288 in words is "two hundred twenty trillion, three hundred eighty-eight billion, nine hundred fifty-nine million, seven hundred seventy-nine thousand, two hundred eighty-eight".