6671579990 has 16 divisors (see below), whose sum is σ = 12011668848. Its totient is φ = 2668004256.

The previous prime is 6671579987. The next prime is 6671580043. The reversal of 6671579990 is 999751766.

It is a Curzon number.

It is a congruent number.

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 7 ways as a sum of consecutive naturals, for example, 32552 + ... + 120011.

It is an arithmetic number, because the mean of its divisors is an integer number (750729303).

Almost surely, 2^6671579990 is an apocalyptic number.

6671579990 is a deficient number, since it is larger than the sum of its proper divisors (5340088858).

6671579990 is a wasteful number, since it uses less digits than its factorization.

6671579990 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 156943.

The product of its (nonzero) digits is 6429780, while the sum is 59.

The square root of 6671579990 is about 81679.7403889116. The cubic root of 6671579990 is about 1882.5343056498.

The spelling of 6671579990 in words is "six billion, six hundred seventy-one million, five hundred seventy-nine thousand, nine hundred ninety".