68105544 has 32 divisors (see below), whose sum is σ = 183361920. Its totient is φ = 20955456.

The previous prime is 68105539. The next prime is 68105549. The reversal of 68105544 is 44550186.

It is an interprime number because it is at equal distance from previous prime (68105539) and next prime (68105549).

It is not an unprimeable number, because it can be changed into a prime (68105549) 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, 108832 + ... + 109455.

It is an arithmetic number, because the mean of its divisors is an integer number (5730060).

Almost surely, 2^68105544 is an apocalyptic number.

It is an amenable number.

68105544 is an abundant number, since it is smaller than the sum of its proper divisors (115256376).

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

68105544 is a wasteful number, since it uses less digits than its factorization.

68105544 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 218309 (or 218305 counting only the distinct ones).

The product of its (nonzero) digits is 19200, while the sum is 33.

The square root of 68105544 is about 8252.6083149511. The cubic root of 68105544 is about 408.3765746608.

The spelling of 68105544 in words is "sixty-eight million, one hundred five thousand, five hundred forty-four".