68065506 has 24 divisors (see below), whose sum is σ = 148011084. Its totient is φ = 22606080.

The previous prime is 68065493. The next prime is 68065507. The reversal of 68065506 is 60556086.

It can be written as a sum of positive squares in 2 ways, for example, as 53890281 + 14175225 = 7341^2 + 3765^2 .

It is a hoax number, since the sum of its digits (36) coincides with the sum of the digits of its distinct prime factors.

It is not an unprimeable number, because it can be changed into a prime (68065507) 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 11 ways as a sum of consecutive naturals, for example, 1671 + ... + 11786.

Almost surely, 2^68065506 is an apocalyptic number.

68065506 is an abundant number, since it is smaller than the sum of its proper divisors (79945578).

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

68065506 is a wasteful number, since it uses less digits than its factorization.

68065506 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13746 (or 13743 counting only the distinct ones).

The product of its (nonzero) digits is 43200, while the sum is 36.

The square root of 68065506 is about 8250.1821798067. The cubic root of 68065506 is about 408.2965332748.

The spelling of 68065506 in words is "sixty-eight million, sixty-five thousand, five hundred six".