66306968 has 32 divisors (see below), whose sum is σ = 153017760. Its totient is φ = 26231040.

The previous prime is 66306967. The next prime is 66306983. The reversal of 66306968 is 86960366.

It is a super-2 number, since 2×66306968² = 8793228010706048, which contains 22 as substring.

It is a zygodrome in base 2.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (66306967) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 44813 + ... + 46268.

It is an arithmetic number, because the mean of its divisors is an integer number (4781805).

Almost surely, 2^66306968 is an apocalyptic number.

It is an amenable number.

66306968 is an abundant number, since it is smaller than the sum of its proper divisors (86710792).

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

66306968 is a wasteful number, since it uses less digits than its factorization.

66306968 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 91107 (or 91103 counting only the distinct ones).

The product of its (nonzero) digits is 279936, while the sum is 44.

The square root of 66306968 is about 8142.9090624911. The cubic root of 66306968 is about 404.7495642194.

The spelling of 66306968 in words is "sixty-six million, three hundred six thousand, nine hundred sixty-eight".