66801796 has 24 divisors (see below), whose sum is σ = 123892160. Its totient is φ = 31428000.

The previous prime is 66801793. The next prime is 66801797. The reversal of 66801796 is 69710866.

66801796 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not an unprimeable number, because it can be changed into a prime (66801793) 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 7 ways as a sum of consecutive naturals, for example, 8566 + ... + 14386.

Almost surely, 2^66801796 is an apocalyptic number.

It is an amenable number.

66801796 is a deficient number, since it is larger than the sum of its proper divisors (57090364).

66801796 is a wasteful number, since it uses less digits than its factorization.

66801796 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5995 (or 5993 counting only the distinct ones).

The product of its (nonzero) digits is 108864, while the sum is 43.

The square root of 66801796 is about 8173.2365682146. The cubic root of 66801796 is about 405.7539094456.

The spelling of 66801796 in words is "sixty-six million, eight hundred one thousand, seven hundred ninety-six".