66714241765 has 16 divisors (see below), whose sum is σ = 82649673216. Its totient is φ = 51643425600.

The previous prime is 66714241729. The next prime is 66714241819. The reversal of 66714241765 is 56714241766.

It is not a de Polignac number, because 66714241765 - 2¹¹ = 66714239717 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

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 15 ways as a sum of consecutive naturals, for example, 1550634 + ... + 1593076.

It is an arithmetic number, because the mean of its divisors is an integer number (5165604576).

Almost surely, 2^66714241765 is an apocalyptic number.

It is an amenable number.

66714241765 is a deficient number, since it is larger than the sum of its proper divisors (15935431451).

66714241765 is a wasteful number, since it uses less digits than its factorization.

66714241765 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 52620.

The product of its digits is 1693440, while the sum is 49.

Subtracting from 66714241765 its reverse (56714241766), we obtain a palindrome (9999999999).

The spelling of 66714241765 in words is "sixty-six billion, seven hundred fourteen million, two hundred forty-one thousand, seven hundred sixty-five".