6666632210544 has 20 divisors (see below), whose sum is σ = 17222133210696. Its totient is φ = 2222210736832.

The previous prime is 6666632210527. The next prime is 6666632210549. The reversal of 6666632210544 is 4450122366666.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6666632210549) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 69444085479 + ... + 69444085574.

Almost surely, 2^{6666632210544} is an apocalyptic number.

It is an amenable number.

6666632210544 is an abundant number, since it is smaller than the sum of its proper divisors (10555501000152).

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

6666632210544 is a wasteful number, since it uses less digits than its factorization.

6666632210544 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 138888171064 (or 138888171058 counting only the distinct ones).

The product of its (nonzero) digits is 7464960, while the sum is 51.

The spelling of 6666632210544 in words is "six trillion, six hundred sixty-six billion, six hundred thirty-two million, two hundred ten thousand, five hundred forty-four".