378241966664 has 8 divisors (see below), whose sum is σ = 709203687510. Its totient is φ = 189120983328.

The previous prime is 378241966639. The next prime is 378241966681. The reversal of 378241966664 is 466669142873.

It can be written as a sum of positive squares in only one way, i.e., 378163502500 + 78464164 = 614950^2 + 8858^2 .

It is a tau number, because it is divible by the number of its divisors (8).

It is a junction number, because it is equal to n+sod(n) for n = 378241966597 and 378241966606.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 23640122909 + ... + 23640122924.

Almost surely, 2^378241966664 is an apocalyptic number.

It is an amenable number.

378241966664 is a deficient number, since it is larger than the sum of its proper divisors (330961720846).

378241966664 is a wasteful number, since it uses less digits than its factorization.

378241966664 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 47280245839 (or 47280245835 counting only the distinct ones).

The product of its digits is 62705664, while the sum is 62.

The spelling of 378241966664 in words is "three hundred seventy-eight billion, two hundred forty-one million, nine hundred sixty-six thousand, six hundred sixty-four".