66424466206 has 32 divisors (see below), whose sum is σ = 114388630272. Its totient is φ = 28338247680.

The previous prime is 66424466201. The next prime is 66424466219. The reversal of 66424466206 is 60266442466.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (66424466201) by changing a digit.

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 15 ways as a sum of consecutive naturals, for example, 6424461 + ... + 6434791.

It is an arithmetic number, because the mean of its divisors is an integer number (3574644696).

Almost surely, 2^66424466206 is an apocalyptic number.

66424466206 is a deficient number, since it is larger than the sum of its proper divisors (47964164066).

66424466206 is a wasteful number, since it uses less digits than its factorization.

66424466206 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12384.

The product of its (nonzero) digits is 1990656, while the sum is 46.

The spelling of 66424466206 in words is "sixty-six billion, four hundred twenty-four million, four hundred sixty-six thousand, two hundred six".