6666402365 has 8 divisors (see below), whose sum is σ = 9142494720. Its totient is φ = 4571247312.

The previous prime is 6666402349. The next prime is 6666402427. The reversal of 6666402365 is 5632046666.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 6666402365 - 2⁴ = 6666402349 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 95234285 + ... + 95234354.

It is an arithmetic number, because the mean of its divisors is an integer number (1142811840).

Almost surely, 2^6666402365 is an apocalyptic number.

It is an amenable number.

6666402365 is a deficient number, since it is larger than the sum of its proper divisors (2476092355).

6666402365 is a wasteful number, since it uses less digits than its factorization.

6666402365 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 190468651.

The product of its (nonzero) digits is 933120, while the sum is 44.

The square root of 6666402365 is about 81648.0395661770. The cubic root of 6666402365 is about 1882.0471856943.

The spelling of 6666402365 in words is "six billion, six hundred sixty-six million, four hundred two thousand, three hundred sixty-five".