66164432654343 has 8 divisors (see below), whose sum is σ = 88222602713728. Its totient is φ = 44107942182264.

The previous prime is 66164432654311. The next prime is 66164432654443. The reversal of 66164432654343 is 34345623446166.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 66164432654343 - 2⁵ = 66164432654311 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (66164432654303) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 419804905 + ... + 419962482.

It is an arithmetic number, because the mean of its divisors is an integer number (11027825339216).

Almost surely, 2^{66164432654343} is an apocalyptic number.

66164432654343 is a deficient number, since it is larger than the sum of its proper divisors (22058170059385).

66164432654343 is a wasteful number, since it uses less digits than its factorization.

66164432654343 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 839793653.

The product of its digits is 89579520, while the sum is 57.

The spelling of 66164432654343 in words is "sixty-six trillion, one hundred sixty-four billion, four hundred thirty-two million, six hundred fifty-four thousand, three hundred forty-three".