66403722730466 has 48 divisors (see below), whose sum is σ = 114540420556800. Its totient is φ = 28820788075200.

The previous prime is 66403722730451. The next prime is 66403722730511.

66403722730466 is nontrivially palindromic in base 10.

66403722730466 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 70731266 + ... + 71663933.

It is an arithmetic number, because the mean of its divisors is an integer number (2386258761600).

Almost surely, 2^{66403722730466} is an apocalyptic number.

66403722730466 is a deficient number, since it is larger than the sum of its proper divisors (48136697826334).

66403722730466 is a wasteful number, since it uses less digits than its factorization.

66403722730466 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 142395311 (or 142395300 counting only the distinct ones).

The product of its (nonzero) digits is 36578304, while the sum is 56.

The spelling of 66403722730466 in words is "sixty-six trillion, four hundred three billion, seven hundred twenty-two million, seven hundred thirty thousand, four hundred sixty-six".