68155648 has 36 divisors (see below), whose sum is σ = 148418928. Its totient is φ = 30978560.

The previous prime is 68155643. The next prime is 68155663. The reversal of 68155648 is 84655186.

It is not an unprimeable number, because it can be changed into a prime (68155643) 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 3 ways as a sum of consecutive naturals, for example, 9286 + ... + 14917.

It is an arithmetic number, because the mean of its divisors is an integer number (4122748).

Almost surely, 2^68155648 is an apocalyptic number.

It is an amenable number.

68155648 is an abundant number, since it is smaller than the sum of its proper divisors (80263280).

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

68155648 is a wasteful number, since it uses less digits than its factorization.

68155648 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 24230 (or 24216 counting only the distinct ones).

The product of its digits is 230400, while the sum is 43.

The square root of 68155648 is about 8255.6434031516. The cubic root of 68155648 is about 408.4766951654.

The spelling of 68155648 in words is "sixty-eight million, one hundred fifty-five thousand, six hundred forty-eight".