66805096 has 32 divisors (see below), whose sum is σ = 130320000. Its totient is φ = 32066496.

The previous prime is 66805073. The next prime is 66805099. The reversal of 66805096 is 69050866.

It is not an unprimeable number, because it can be changed into a prime (66805099) by changing a digit.

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 7 ways as a sum of consecutive naturals, for example, 45445 + ... + 46891.

It is an arithmetic number, because the mean of its divisors is an integer number (4072500).

Almost surely, 2^66805096 is an apocalyptic number.

It is an amenable number.

66805096 is a deficient number, since it is larger than the sum of its proper divisors (63514904).

66805096 is a wasteful number, since it uses less digits than its factorization.

66805096 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1681 (or 1677 counting only the distinct ones).

The product of its (nonzero) digits is 77760, while the sum is 40.

The square root of 66805096 is about 8173.4384441311. The cubic root of 66805096 is about 405.7605907323.

The spelling of 66805096 in words is "sixty-six million, eight hundred five thousand, ninety-six".