68888220020 has 24 divisors (see below), whose sum is σ = 146702803968. Its totient is φ = 27167184800.

The previous prime is 68888220013. The next prime is 68888220077. The reversal of 68888220020 is 2002288886.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 24254996 + ... + 24257835.

It is an arithmetic number, because the mean of its divisors is an integer number (6112616832).

Almost surely, 2^68888220020 is an apocalyptic number.

It is an amenable number.

68888220020 is an abundant number, since it is smaller than the sum of its proper divisors (77814583948).

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

68888220020 is a wasteful number, since it uses less digits than its factorization.

68888220020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 48512911 (or 48512909 counting only the distinct ones).

The product of its (nonzero) digits is 196608, while the sum is 44.

The spelling of 68888220020 in words is "sixty-eight billion, eight hundred eighty-eight million, two hundred twenty thousand, twenty".