68011506 has 24 divisors (see below), whose sum is σ = 153766080. Its totient is φ = 21684696.

The previous prime is 68011501. The next prime is 68011547. The reversal of 68011506 is 60511086.

It is a self number, because there is not a number n which added to its sum of digits gives 68011506.

It is not an unprimeable number, because it can be changed into a prime (68011501) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 81726 + ... + 82553.

It is an arithmetic number, because the mean of its divisors is an integer number (6406920).

Almost surely, 2^68011506 is an apocalyptic number.

68011506 is an abundant number, since it is smaller than the sum of its proper divisors (85754574).

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

68011506 is a wasteful number, since it uses less digits than its factorization.

68011506 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 164310 (or 164307 counting only the distinct ones).

The product of its (nonzero) digits is 1440, while the sum is 27.

The square root of 68011506 is about 8246.9088754515. The cubic root of 68011506 is about 408.1885302285.

The spelling of 68011506 in words is "sixty-eight million, eleven thousand, five hundred six".