6669679015 has 12 divisors (see below), whose sum is σ = 8225783496. Its totient is φ = 5191528608.

The previous prime is 6669679001. The next prime is 6669679067. The reversal of 6669679015 is 5109769666.

It is not a de Polignac number, because 6669679015 - 2⁷ = 6669678887 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 480349 + ... + 494038.

It is an arithmetic number, because the mean of its divisors is an integer number (685481958).

Almost surely, 2^6669679015 is an apocalyptic number.

6669679015 is a deficient number, since it is larger than the sum of its proper divisors (1556104481).

6669679015 is an equidigital number, since it uses as much as digits as its factorization.

6669679015 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 974466 (or 974429 counting only the distinct ones).

The product of its (nonzero) digits is 3674160, while the sum is 55.

The square root of 6669679015 is about 81668.1028002977. The cubic root of 6669679015 is about 1882.3554879081.

The spelling of 6669679015 in words is "six billion, six hundred sixty-nine million, six hundred seventy-nine thousand, fifteen".