66631162914 has 12 divisors (see below), whose sum is σ = 144367519686. Its totient is φ = 22210387632.

The previous prime is 66631162891. The next prime is 66631162921. The reversal of 66631162914 is 41926113666.

It can be written as a sum of positive squares in only one way, i.e., 65369705625 + 1261457289 = 255675^2 + 35517^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 66631162914.

It is an unprimeable number.

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 5 ways as a sum of consecutive naturals, for example, 1850865619 + ... + 1850865654.

Almost surely, 2^66631162914 is an apocalyptic number.

66631162914 is an abundant number, since it is smaller than the sum of its proper divisors (77736356772).

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

66631162914 is a wasteful number, since it uses less digits than its factorization.

66631162914 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3701731281 (or 3701731278 counting only the distinct ones).

The product of its digits is 279936, while the sum is 45.

The spelling of 66631162914 in words is "sixty-six billion, six hundred thirty-one million, one hundred sixty-two thousand, nine hundred fourteen".