66352856263 has 4 divisors (see below), whose sum is σ = 66359061808. Its totient is φ = 66346650720.

The previous prime is 66352856257. The next prime is 66352856303. The reversal of 66352856263 is 36265825366.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 66352856263 - 2¹³ = 66352848071 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 66352856263.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (66352856203) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3086706 + ... + 3108127.

It is an arithmetic number, because the mean of its divisors is an integer number (16589765452).

Almost surely, 2^66352856263 is an apocalyptic number.

66352856263 is a deficient number, since it is larger than the sum of its proper divisors (6205545).

66352856263 is a wasteful number, since it uses less digits than its factorization.

66352856263 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6205544.

The product of its digits is 9331200, while the sum is 52.

The spelling of 66352856263 in words is "sixty-six billion, three hundred fifty-two million, eight hundred fifty-six thousand, two hundred sixty-three".