6666402363 has 16 divisors (see below), whose sum is σ = 9316608000. Its totient is φ = 4231966464.

The previous prime is 6666402349. The next prime is 6666402427. The reversal of 6666402363 is 3632046666.

It is not a de Polignac number, because 6666402363 - 2²⁶ = 6599293499 is a prime.

It is not an unprimeable number, because it can be changed into a prime (6666402313) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 201238 + ... + 232011.

It is an arithmetic number, because the mean of its divisors is an integer number (582288000).

Almost surely, 2^6666402363 is an apocalyptic number.

6666402363 is a deficient number, since it is larger than the sum of its proper divisors (2650205637).

6666402363 is a wasteful number, since it uses less digits than its factorization.

6666402363 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 433498.

The product of its (nonzero) digits is 559872, while the sum is 42.

The square root of 6666402363 is about 81648.0395539293. The cubic root of 6666402363 is about 1882.0471855061.

The spelling of 6666402363 in words is "six billion, six hundred sixty-six million, four hundred two thousand, three hundred sixty-three".