66194382711 has 8 divisors (see below), whose sum is σ = 88702691200. Its totient is φ = 43907831352.

The previous prime is 66194382703. The next prime is 66194382719. The reversal of 66194382711 is 11728349166.

It is an interprime number because it is at equal distance from previous prime (66194382703) and next prime (66194382719).

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

It is not a de Polignac number, because 66194382711 - 2³ = 66194382703 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 (66194382719) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 55438585 + ... + 55439778.

It is an arithmetic number, because the mean of its divisors is an integer number (11087836400).

Almost surely, 2^66194382711 is an apocalyptic number.

66194382711 is a deficient number, since it is larger than the sum of its proper divisors (22508308489).

66194382711 is a wasteful number, since it uses less digits than its factorization.

66194382711 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 110878565.

The product of its digits is 435456, while the sum is 48.

The spelling of 66194382711 in words is "sixty-six billion, one hundred ninety-four million, three hundred eighty-two thousand, seven hundred eleven".