66300840844 has 24 divisors (see below), whose sum is σ = 132981648800. Its totient is φ = 28333224576.

The previous prime is 66300840719. The next prime is 66300840847. The reversal of 66300840844 is 44804800366.

It is a self number, because there is not a number n which added to its sum of digits gives 66300840844.

It is not an unprimeable number, because it can be changed into a prime (66300840847) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3382617 + ... + 3402160.

Almost surely, 2^66300840844 is an apocalyptic number.

It is an amenable number.

66300840844 is an abundant number, since it is smaller than the sum of its proper divisors (66680807956).

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

66300840844 is a wasteful number, since it uses less digits than its factorization.

66300840844 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6785137 (or 6785135 counting only the distinct ones).

The product of its (nonzero) digits is 442368, while the sum is 43.

The spelling of 66300840844 in words is "sixty-six billion, three hundred million, eight hundred forty thousand, eight hundred forty-four".