6660506279 has 8 divisors (see below), whose sum is σ = 8059772448. Its totient is φ = 5373181440.

The previous prime is 6660506269. The next prime is 6660506287. The reversal of 6660506279 is 9726050666.

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 6660506279 - 2¹² = 6660502183 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6660506239) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 27985202 + ... + 27985439.

It is an arithmetic number, because the mean of its divisors is an integer number (1007471556).

Almost surely, 2^6660506279 is an apocalyptic number.

6660506279 is a deficient number, since it is larger than the sum of its proper divisors (1399266169).

6660506279 is a wasteful number, since it uses less digits than its factorization.

6660506279 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 55970665.

The product of its (nonzero) digits is 816480, while the sum is 47.

The square root of 6660506279 is about 81611.9248578294. The cubic root of 6660506279 is about 1881.4921644324.

The spelling of 6660506279 in words is "six billion, six hundred sixty million, five hundred six thousand, two hundred seventy-nine".