68236205660 has 48 divisors (see below), whose sum is σ = 165607001280. Its totient is φ = 23132398080.

The previous prime is 68236205623. The next prime is 68236205669. The reversal of 68236205660 is 6650263286.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (68236205669) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2725751 + ... + 2750670.

It is an arithmetic number, because the mean of its divisors is an integer number (3450145860).

Almost surely, 2^68236205660 is an apocalyptic number.

It is an amenable number.

68236205660 is an abundant number, since it is smaller than the sum of its proper divisors (97370795620).

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

68236205660 is a wasteful number, since it uses less digits than its factorization.

68236205660 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5476526 (or 5476524 counting only the distinct ones).

The product of its (nonzero) digits is 622080, while the sum is 44.

The spelling of 68236205660 in words is "sixty-eight billion, two hundred thirty-six million, two hundred five thousand, six hundred sixty".