66496054589 has 8 divisors (see below), whose sum is σ = 69307510272. Its totient is φ = 63726250320.

The previous prime is 66496054543. The next prime is 66496054613. The reversal of 66496054589 is 98545069466.

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

It is a cyclic number.

It is not a de Polignac number, because 66496054589 - 2²⁰ = 66495006013 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (66496014589) by changing a digit.

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, 10409594 + ... + 10415979.

It is an arithmetic number, because the mean of its divisors is an integer number (8663438784).

Almost surely, 2^66496054589 is an apocalyptic number.

It is an amenable number.

66496054589 is a deficient number, since it is larger than the sum of its proper divisors (2811455683).

66496054589 is a wasteful number, since it uses less digits than its factorization.

66496054589 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20825707.

The product of its (nonzero) digits is 55987200, while the sum is 62.

The spelling of 66496054589 in words is "sixty-six billion, four hundred ninety-six million, fifty-four thousand, five hundred eighty-nine".