68215000220 has 36 divisors (see below), whose sum is σ = 143616397512. Its totient is φ = 27216672000.

The previous prime is 68215000219. The next prime is 68215000247. The reversal of 68215000220 is 2200051286.

It is a Smith number, since the sum of its digits (26) coincides with the sum of the digits of its prime factors.

It is a self number, because there is not a number n which added to its sum of digits gives 68215000220.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 3205415 + ... + 3226625.

Almost surely, 2^68215000220 is an apocalyptic number.

It is an amenable number.

68215000220 is an abundant number, since it is smaller than the sum of its proper divisors (75401397292).

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

68215000220 is a wasteful number, since it uses less digits than its factorization.

68215000220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 22022 (or 21619 counting only the distinct ones).

The product of its (nonzero) digits is 1920, while the sum is 26.

The spelling of 68215000220 in words is "sixty-eight billion, two hundred fifteen million, two hundred twenty", and thus it is an aban number.