220620673800 has 108 divisors (see below), whose sum is σ = 740984693085. Its totient is φ = 58826865600.

The previous prime is 220620673769. The next prime is 220620673829. The reversal of 220620673800 is 8376026022.

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.

220620673800 is a `hidden beast` number, since 2 + 20 + 620 + 6 + 7 + 3 + 8 + 0 + 0 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 216208260324 + 4412413476 = 464982^2 + 66426^2 .

It is an ABA number since it can be written as A⋅B^A, here for A=2, B=332130.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is an unprimeable number.

It is a polite number, since it can be written in 26 ways as a sum of consecutive naturals, for example, 19922265 + ... + 19933335.

Almost surely, 2^220620673800 is an apocalyptic number.

220620673800 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

220620673800 is an abundant number, since it is smaller than the sum of its proper divisors (520364019285).

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

220620673800 is an equidigital number, since it uses as much as digits as its factorization.

220620673800 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 22164 (or 11081 counting only the distinct ones).

The product of its (nonzero) digits is 48384, while the sum is 36.

Adding to 220620673800 its reverse (8376026022), we get a palindrome (228996699822).

The spelling of 220620673800 in words is "two hundred twenty billion, six hundred twenty million, six hundred seventy-three thousand, eight hundred".