66218613601346 has 16 divisors (see below), whose sum is σ = 100994723729376. Its totient is φ = 32555512525536.

The previous prime is 66218613601247. The next prime is 66218613601403. The reversal of 66218613601346 is 64310631681266.

66218613601346 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 7 ways as a sum of consecutive naturals, for example, 451634891 + ... + 451781486.

It is an arithmetic number, because the mean of its divisors is an integer number (6312170233086).

Almost surely, 2^{66218613601346} is an apocalyptic number.

66218613601346 is a deficient number, since it is larger than the sum of its proper divisors (34776110128030).

66218613601346 is a wasteful number, since it uses less digits than its factorization.

66218613601346 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 903416993.

The product of its (nonzero) digits is 4478976, while the sum is 53.

The spelling of 66218613601346 in words is "sixty-six trillion, two hundred eighteen billion, six hundred thirteen million, six hundred one thousand, three hundred forty-six".