220528309232 has 80 divisors (see below), whose sum is σ = 532809659904. Its totient is φ = 85903200000.

The previous prime is 220528309231. The next prime is 220528309297. The reversal of 220528309232 is 232903825022.

It is a happy number.

220528309232 is digitally balanced in base 2, because in such base 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 (220528309231) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 7563482 + ... + 7592582.

Almost surely, 2^220528309232 is an apocalyptic number.

220528309232 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

It is an amenable number.

220528309232 is an abundant number, since it is smaller than the sum of its proper divisors (312281350672).

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

220528309232 is a wasteful number, since it uses less digits than its factorization.

220528309232 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 35278 (or 35272 counting only the distinct ones).

The product of its (nonzero) digits is 103680, while the sum is 38.

The spelling of 220528309232 in words is "two hundred twenty billion, five hundred twenty-eight million, three hundred nine thousand, two hundred thirty-two".