68111960 has 192 divisors, whose sum is σ = 196992000. Its totient is φ = 21047040.

The previous prime is 68111951. The next prime is 68111963. The reversal of 68111960 is 6911186.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (68111963) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 1154411 + ... + 1154469.

It is an arithmetic number, because the mean of its divisors is an integer number (1026000).

Almost surely, 2^68111960 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 68111960, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (98496000).

68111960 is an abundant number, since it is smaller than the sum of its proper divisors (128880040).

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

68111960 is a wasteful number, since it uses less digits than its factorization.

68111960 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 134 (or 123 counting only the distinct ones).

The product of its (nonzero) digits is 2592, while the sum is 32.

The square root of 68111960 is about 8252.9970313820. The cubic root of 68111960 is about 408.3893981975.

The spelling of 68111960 in words is "sixty-eight million, one hundred eleven thousand, nine hundred sixty".