66312879065 has 8 divisors (see below), whose sum is σ = 83035257408. Its totient is φ = 50743768240.

The previous prime is 66312879053. The next prime is 66312879091. The reversal of 66312879065 is 56097821366.

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

It is not a de Polignac number, because 66312879065 - 2¹⁰ = 66312878041 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 66312878998 and 66312879016.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 288316751 + ... + 288316980.

It is an arithmetic number, because the mean of its divisors is an integer number (10379407176).

Almost surely, 2^66312879065 is an apocalyptic number.

It is an amenable number.

66312879065 is a deficient number, since it is larger than the sum of its proper divisors (16722378343).

66312879065 is a wasteful number, since it uses less digits than its factorization.

66312879065 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 576633759.

The product of its (nonzero) digits is 3265920, while the sum is 53.

The spelling of 66312879065 in words is "sixty-six billion, three hundred twelve million, eight hundred seventy-nine thousand, sixty-five".