20320302220200 has 144 divisors (see below), whose sum is σ = 68244484779900. Its totient is φ = 5418577612800.

The previous prime is 20320302220181. The next prime is 20320302220291. The reversal of 20320302220200 is 202220302302.

20320302220200 is a `hidden beast` number, since 2 + 0 + 320 + 302 + 2 + 20 + 20 + 0 = 666.

It can be written as a sum of positive squares in 6 ways, for example, as 4500448273476 + 15819853946724 = 2121426^2 + 3977418^2 .

It is a Harshad number since it is a multiple of its sum of digits (18).

It is an unprimeable number.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 63757240 + ... + 64075160.

Almost surely, 2^{20320302220200} is an apocalyptic number.

20320302220200 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

20320302220200 is an abundant number, since it is smaller than the sum of its proper divisors (47924182559700).

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

20320302220200 is a wasteful number, since it uses less digits than its factorization.

20320302220200 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 353452 (or 353440 counting only the distinct ones).

The product of its (nonzero) digits is 576, while the sum is 18.

Adding to 20320302220200 its reverse (202220302302), we get a palindrome (20522522522502).

The spelling of 20320302220200 in words is "twenty trillion, three hundred twenty billion, three hundred two million, two hundred twenty thousand, two hundred".