220995475488 has 54 divisors (see below), whose sum is σ = 628478571357. Its totient is φ = 73662499200.

The previous prime is 220995475451. The next prime is 220995475489. The reversal of 220995475488 is 884574599022.

It is a powerful number, because all its prime factors have an exponent greater than 1 and also an Achilles number because it is not a perfect power.

220995475488 is a `hidden beast` number, since 2 + 2 + 0 + 9 + 9 + 547 + 5 + 4 + 88 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 219484754064 + 1510721424 = 468492^2 + 38868^2 .

It is an ABA number since it can be written as A⋅B^A, here for A=2, B=332412.

It is not an unprimeable number, because it can be changed into a prime (220995475489) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 8 ways as a sum of consecutive naturals, for example, 7964038 + ... + 7991738.

Almost surely, 2^220995475488 is an apocalyptic number.

It is an amenable number.

220995475488 is an abundant number, since it is smaller than the sum of its proper divisors (407483095869).

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

220995475488 is an frugal number, since it uses more digits than its factorization.

220995475488 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 55418 (or 27706 counting only the distinct ones).

The product of its (nonzero) digits is 58060800, while the sum is 63.

The spelling of 220995475488 in words is "two hundred twenty billion, nine hundred ninety-five million, four hundred seventy-five thousand, four hundred eighty-eight".