66400241304 has 16 divisors (see below), whose sum is σ = 166000603320. Its totient is φ = 22133413760.

The previous prime is 66400241291. The next prime is 66400241353. The reversal of 66400241304 is 40314200466.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1383338337 + ... + 1383338384.

Almost surely, 2^66400241304 is an apocalyptic number.

It is an amenable number.

66400241304 is an abundant number, since it is smaller than the sum of its proper divisors (99600362016).

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

66400241304 is a wasteful number, since it uses less digits than its factorization.

66400241304 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2766676730 (or 2766676726 counting only the distinct ones).

The product of its (nonzero) digits is 13824, while the sum is 30.

The spelling of 66400241304 in words is "sixty-six billion, four hundred million, two hundred forty-one thousand, three hundred four".