66264643302 has 128 divisors (see below), whose sum is σ = 157588623360. Its totient is φ = 18312013440.

The previous prime is 66264643301. The next prime is 66264643321. The reversal of 66264643302 is 20334646266.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (66264643301) 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 63 ways as a sum of consecutive naturals, for example, 25032543 + ... + 25035189.

It is an arithmetic number, because the mean of its divisors is an integer number (1231161120).

Almost surely, 2^66264643302 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 66264643302, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (78794311680).

66264643302 is an abundant number, since it is smaller than the sum of its proper divisors (91323980058).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

66264643302 is a wasteful number, since it uses less digits than its factorization.

66264643302 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3018.

The product of its (nonzero) digits is 746496, while the sum is 42.

The spelling of 66264643302 in words is "sixty-six billion, two hundred sixty-four million, six hundred forty-three thousand, three hundred two".