220528155072 has 56 divisors (see below), whose sum is σ = 617803149456. Its totient is φ = 69185302528.

The previous prime is 220528155053. The next prime is 220528155073. The reversal of 220528155072 is 270551825022.

It is a self number, because there is not a number n which added to its sum of digits gives 220528155072.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (220528155073) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 33778623 + ... + 33785150.

Almost surely, 2^220528155072 is an apocalyptic number.

It is an amenable number.

220528155072 is an abundant number, since it is smaller than the sum of its proper divisors (397274994384).

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

220528155072 is a wasteful number, since it uses less digits than its factorization.

220528155072 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 67563805 (or 67563795 counting only the distinct ones).

The product of its (nonzero) digits is 112000, while the sum is 39.

The spelling of 220528155072 in words is "two hundred twenty billion, five hundred twenty-eight million, one hundred fifty-five thousand, seventy-two".