220394133720 has 96 divisors (see below), whose sum is σ = 747423612000. Its totient is φ = 56216472576.

The previous prime is 220394133703. The next prime is 220394133721. The reversal of 220394133720 is 27331493022.

220394133720 is a `hidden beast` number, since 2 + 203 + 9 + 413 + 37 + 2 + 0 = 666.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (220394133721) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 13300545 + ... + 13317104.

It is an arithmetic number, because the mean of its divisors is an integer number (7785662625).

Almost surely, 2^220394133720 is an apocalyptic number.

220394133720 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

220394133720 is an abundant number, since it is smaller than the sum of its proper divisors (527029478280).

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

220394133720 is a wasteful number, since it uses less digits than its factorization.

220394133720 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 26617689 (or 26617682 counting only the distinct ones).

The product of its (nonzero) digits is 54432, while the sum is 36.

The spelling of 220394133720 in words is "two hundred twenty billion, three hundred ninety-four million, one hundred thirty-three thousand, seven hundred twenty".