66907026 has 32 divisors (see below), whose sum is σ = 152705280. Its totient is φ = 21698928.

The previous prime is 66907013. The next prime is 66907051. The reversal of 66907026 is 62070966.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 14746 + ... + 18741.

It is an arithmetic number, because the mean of its divisors is an integer number (4772040).

Almost surely, 2^66907026 is an apocalyptic number.

66907026 is an abundant number, since it is smaller than the sum of its proper divisors (85798254).

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

66907026 is a wasteful number, since it uses less digits than its factorization.

66907026 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 33535 (or 33529 counting only the distinct ones).

The product of its (nonzero) digits is 27216, while the sum is 36.

The square root of 66907026 is about 8179.6715092967. The cubic root of 66907026 is about 405.9668532396.

The spelling of 66907026 in words is "sixty-six million, nine hundred seven thousand, twenty-six".