6665680802 has 8 divisors (see below), whose sum is σ = 10907477712. Its totient is φ = 3029854900.

The previous prime is 6665680799. The next prime is 6665680811. The reversal of 6665680802 is 2080865666.

It is a happy number.

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

It is a super-3 number, since 3×6665680802³ (a number of 30 digits) contains 333 as substring.

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 3 ways as a sum of consecutive naturals, for example, 151492724 + ... + 151492767.

It is an arithmetic number, because the mean of its divisors is an integer number (1363434714).

Almost surely, 2^6665680802 is an apocalyptic number.

6665680802 is a deficient number, since it is larger than the sum of its proper divisors (4241796910).

6665680802 is a wasteful number, since it uses less digits than its factorization.

6665680802 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 302985504.

The product of its (nonzero) digits is 829440, while the sum is 47.

The square root of 6665680802 is about 81643.6207060907. The cubic root of 6665680802 is about 1881.9792797715.

The spelling of 6665680802 in words is "six billion, six hundred sixty-five million, six hundred eighty thousand, eight hundred two".