66434322343466 has 32 divisors (see below), whose sum is σ = 129642584997888. Its totient is φ = 24758132549040.

The previous prime is 66434322343439. The next prime is 66434322343507.

66434322343466 is nontrivially palindromic in base 10.

It is a Smith number, since the sum of its digits (56) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Curzon number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 9378076970 + ... + 9378084053.

It is an arithmetic number, because the mean of its divisors is an integer number (4051330781184).

Almost surely, 2^{66434322343466} is an apocalyptic number.

66434322343466 is a deficient number, since it is larger than the sum of its proper divisors (63208262654422).

66434322343466 is a wasteful number, since it uses less digits than its factorization.

66434322343466 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18756161066.

The product of its digits is 107495424, while the sum is 56.

It can be divided in two parts, 6643432 and 2343466, that added together give a palindrome (8986898).

The spelling of 66434322343466 in words is "sixty-six trillion, four hundred thirty-four billion, three hundred twenty-two million, three hundred forty-three thousand, four hundred sixty-six".