220487841800 has 36 divisors (see below), whose sum is σ = 512649672045. Its totient is φ = 88192480480.

The previous prime is 220487841757. The next prime is 220487841829. The reversal of 220487841800 is 8148784022.

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 2 ways, for example, as 216078084964 + 4409756836 = 464842^2 + 66406^2 .

It is an ABA number since it can be written as A⋅B^A, here for A=2, B=332030.

It is a super-2 number, since 2×220487841800² (a number of 23 digits) contains 22 as substring.

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, 6623999 + ... + 6657201.

Almost surely, 2^220487841800 is an apocalyptic number.

220487841800 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

220487841800 is an abundant number, since it is smaller than the sum of its proper divisors (292161830245).

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

220487841800 is an frugal number, since it uses more digits than its factorization.

220487841800 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 66422 (or 33210 counting only the distinct ones).

The product of its (nonzero) digits is 229376, while the sum is 44.

The spelling of 220487841800 in words is "two hundred twenty billion, four hundred eighty-seven million, eight hundred forty-one thousand, eight hundred".