6666840202 has 8 divisors (see below), whose sum is σ = 10909374912. Its totient is φ = 3030381900.

The previous prime is 6666840199. The next prime is 6666840209. The reversal of 6666840202 is 2020486666.

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

It is not an unprimeable number, because it can be changed into a prime (6666840209) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 151519074 + ... + 151519117.

It is an arithmetic number, because the mean of its divisors is an integer number (1363671864).

Almost surely, 2^6666840202 is an apocalyptic number.

6666840202 is a deficient number, since it is larger than the sum of its proper divisors (4242534710).

6666840202 is a wasteful number, since it uses less digits than its factorization.

6666840202 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 303038204.

The product of its (nonzero) digits is 165888, while the sum is 40.

The square root of 6666840202 is about 81650.7207684047. The cubic root of 6666840202 is about 1882.0883879205.

The spelling of 6666840202 in words is "six billion, six hundred sixty-six million, eight hundred forty thousand, two hundred two".