66738796 has 6 divisors (see below), whose sum is σ = 116792900. Its totient is φ = 33369396.

The previous prime is 66738781. The next prime is 66738797. The reversal of 66738796 is 69783766.

66738796 is digitally balanced in base 9, because in such base it contains all the possibile digits an equal number of times.

66738796 is strictly pandigital in base 9.

It is not an unprimeable number, because it can be changed into a prime (66738797) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 8342346 + ... + 8342353.

Almost surely, 2^66738796 is an apocalyptic number.

It is an amenable number.

66738796 is a deficient number, since it is larger than the sum of its proper divisors (50054104).

66738796 is a wasteful number, since it uses less digits than its factorization.

66738796 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16684703 (or 16684701 counting only the distinct ones).

The product of its digits is 2286144, while the sum is 52.

The square root of 66738796 is about 8169.3816167443. The cubic root of 66738796 is about 405.6263153891.

The spelling of 66738796 in words is "sixty-six million, seven hundred thirty-eight thousand, seven hundred ninety-six".