220028551712 has 54 divisors (see below), whose sum is σ = 438046149807. Its totient is φ = 108792352000.

The previous prime is 220028551667. The next prime is 220028551723. The reversal of 220028551712 is 217155820022.

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.

It can be written as a sum of positive squares in 5 ways, for example, as 180968563216 + 39059988496 = 425404^2 + 197636^2 .

It is an ABA number since it can be written as A⋅B^A, here for A=2, B=331684.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 8 ways as a sum of consecutive naturals, for example, 268000262 + ... + 268001082.

Almost surely, 2^220028551712 is an apocalyptic number.

It is an amenable number.

220028551712 is a deficient number, since it is larger than the sum of its proper divisors (218017598095).

220028551712 is an frugal number, since it uses more digits than its factorization.

220028551712 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1854 (or 924 counting only the distinct ones).

The product of its (nonzero) digits is 22400, while the sum is 35.

The spelling of 220028551712 in words is "two hundred twenty billion, twenty-eight million, five hundred fifty-one thousand, seven hundred twelve".