68111560 has 32 divisors (see below), whose sum is σ = 167184000. Its totient is φ = 24767680.

The previous prime is 68111539. The next prime is 68111569. The reversal of 68111560 is 6511186.

It is not an unprimeable number, because it can be changed into a prime (68111569) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 76960 + ... + 77839.

It is an arithmetic number, because the mean of its divisors is an integer number (5224500).

Almost surely, 2^68111560 is an apocalyptic number.

It is an amenable number.

68111560 is an abundant number, since it is smaller than the sum of its proper divisors (99072440).

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

68111560 is a wasteful number, since it uses less digits than its factorization.

68111560 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 154821 (or 154817 counting only the distinct ones).

The product of its (nonzero) digits is 1440, while the sum is 28.

The square root of 68111560 is about 8252.9727977257. The cubic root of 68111560 is about 408.3885987487.

It can be divided in two parts, 68 and 111560, that added together give a triangular number (111628 = T₄₇₂).

The spelling of 68111560 in words is "sixty-eight million, one hundred eleven thousand, five hundred sixty".