68680000220 has 24 divisors (see below), whose sum is σ = 155322462624. Its totient is φ = 25358769216.

The previous prime is 68680000211. The next prime is 68680000231. The reversal of 68680000220 is 2200008686.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 132076664 + ... + 132077183.

It is an arithmetic number, because the mean of its divisors is an integer number (6471769276).

Almost surely, 2^68680000220 is an apocalyptic number.

It is an amenable number.

68680000220 is an abundant number, since it is smaller than the sum of its proper divisors (86642462404).

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

68680000220 is a wasteful number, since it uses less digits than its factorization.

68680000220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 264153869 (or 264153867 counting only the distinct ones).

The product of its (nonzero) digits is 9216, while the sum is 32.

The spelling of 68680000220 in words is "sixty-eight billion, six hundred eighty million, two hundred twenty", and thus it is an aban number.