220505808888 has 48 divisors (see below), whose sum is σ = 603001342320. Its totient is φ = 72788322816.

The previous prime is 220505808871. The next prime is 220505808889. The reversal of 220505808888 is 888808505022.

220505808888 is a `hidden beast` number, since 2 + 2 + 0 + 50 + 580 + 8 + 8 + 8 + 8 = 666.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (220505808889) 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, 14859481 + ... + 14874312.

It is an arithmetic number, because the mean of its divisors is an integer number (12562527965).

Almost surely, 2^220505808888 is an apocalyptic number.

It is an amenable number.

220505808888 is an abundant number, since it is smaller than the sum of its proper divisors (382495533432).

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

220505808888 is a wasteful number, since it uses less digits than its factorization.

220505808888 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 29733908 (or 29733901 counting only the distinct ones).

The product of its (nonzero) digits is 3276800, while the sum is 54.

The spelling of 220505808888 in words is "two hundred twenty billion, five hundred five million, eight hundred eight thousand, eight hundred eighty-eight".