20020307558220 has 72 divisors (see below), whose sum is σ = 60735648748320. Its totient is φ = 5338099672320.

The previous prime is 20020307558201. The next prime is 20020307558221. The reversal of 20020307558220 is 2285570302002.

It is a happy number.

20020307558220 is a `hidden beast` number, since 2 + 0 + 0 + 2 + 0 + 3 + 0 + 75 + 582 + 2 + 0 = 666.

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

It is not an unprimeable number, because it can be changed into a prime (20020307558221) 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, 5274825 + ... + 8237984.

It is an arithmetic number, because the mean of its divisors is an integer number (843550677060).

Almost surely, 2^{20020307558220} is an apocalyptic number.

20020307558220 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

20020307558220 is an abundant number, since it is smaller than the sum of its proper divisors (40715341190100).

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

20020307558220 is a wasteful number, since it uses less digits than its factorization.

20020307558220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13521055 (or 13521050 counting only the distinct ones).

The product of its (nonzero) digits is 67200, while the sum is 36.

The spelling of 20020307558220 in words is "twenty trillion, twenty billion, three hundred seven million, five hundred fifty-eight thousand, two hundred twenty".