20350667220 has 48 divisors (see below), whose sum is σ = 61365091200. Its totient is φ = 5009394816.

The previous prime is 20350667213. The next prime is 20350667243. The reversal of 20350667220 is 2276605302.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 13044520 + ... + 13046079.

It is an arithmetic number, because the mean of its divisors is an integer number (1278439400).

Almost surely, 2^20350667220 is an apocalyptic number.

20350667220 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

20350667220 is an abundant number, since it is smaller than the sum of its proper divisors (41014423980).

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

20350667220 is a wasteful number, since it uses less digits than its factorization.

20350667220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 26090624 (or 26090622 counting only the distinct ones).

The product of its (nonzero) digits is 30240, while the sum is 33.

The spelling of 20350667220 in words is "twenty billion, three hundred fifty million, six hundred sixty-seven thousand, two hundred twenty".