64968066333 has 40 divisors (see below), whose sum is σ = 97681223640. Its totient is φ = 43031295360.

The previous prime is 64968066283. The next prime is 64968066343. The reversal of 64968066333 is 33366086946.

It can be written as a sum of positive squares in 4 ways, for example, as 6734171844 + 58233894489 = 82062^2 + 241317^2 .

It is not a de Polignac number, because 64968066333 - 2²¹ = 64965969181 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 64968066333.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (64968066343) by changing a digit.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 26227291 + ... + 26229767.

It is an arithmetic number, because the mean of its divisors is an integer number (2442030591).

Almost surely, 2^64968066333 is an apocalyptic number.

It is an amenable number.

64968066333 is a deficient number, since it is larger than the sum of its proper divisors (32713157307).

64968066333 is a wasteful number, since it uses less digits than its factorization.

64968066333 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4459 (or 4450 counting only the distinct ones).

The product of its (nonzero) digits is 10077696, while the sum is 54.

The spelling of 64968066333 in words is "sixty-four billion, nine hundred sixty-eight million, sixty-six thousand, three hundred thirty-three".