68322660 has 144 divisors (see below), whose sum is σ = 235799424. Its totient is φ = 14687232.

The previous prime is 68322659. The next prime is 68322697. The reversal of 68322660 is 6622386.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 49297 + ... + 50663.

It is an arithmetic number, because the mean of its divisors is an integer number (1637496).

Almost surely, 2^68322660 is an apocalyptic number.

68322660 is a gapful number since it is divisible by the number (60) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 68322660, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (117899712).

68322660 is an abundant number, since it is smaller than the sum of its proper divisors (167476764).

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

68322660 is a wasteful number, since it uses less digits than its factorization.

68322660 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1410 (or 1401 counting only the distinct ones).

The product of its (nonzero) digits is 20736, while the sum is 33.

The square root of 68322660 is about 8265.7522343704. The cubic root of 68322660 is about 408.8100735617.

The spelling of 68322660 in words is "sixty-eight million, three hundred twenty-two thousand, six hundred sixty".