6666402364 has 24 divisors (see below), whose sum is σ = 11731168400. Its totient is φ = 3314666880.

The previous prime is 6666402349. The next prime is 6666402427. The reversal of 6666402364 is 4632046666.

It is a self number, because there is not a number n which added to its sum of digits gives 6666402364.

It is a congruent number.

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 7 ways as a sum of consecutive naturals, for example, 1355542 + ... + 1360450.

Almost surely, 2^6666402364 is an apocalyptic number.

It is an amenable number.

6666402364 is a deficient number, since it is larger than the sum of its proper divisors (5064766036).

6666402364 is a wasteful number, since it uses less digits than its factorization.

6666402364 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6733 (or 6731 counting only the distinct ones).

The product of its (nonzero) digits is 746496, while the sum is 43.

The square root of 6666402364 is about 81648.0395600531. The cubic root of 6666402364 is about 1882.0471856002.

The spelling of 6666402364 in words is "six billion, six hundred sixty-six million, four hundred two thousand, three hundred sixty-four".