6667015813 has 16 divisors (see below), whose sum is σ = 7012630080. Its totient is φ = 6330007936.

The previous prime is 6667015807. The next prime is 6667015843. The reversal of 6667015813 is 3185107666.

It is a cyclic number.

It is not a de Polignac number, because 6667015813 - 2⁹ = 6667015301 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 6667015813.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6667015843) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 417270 + ... + 432952.

It is an arithmetic number, because the mean of its divisors is an integer number (438289380).

Almost surely, 2^6667015813 is an apocalyptic number.

It is an amenable number.

6667015813 is a deficient number, since it is larger than the sum of its proper divisors (345614267).

6667015813 is a wasteful number, since it uses less digits than its factorization.

6667015813 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15956.

The product of its (nonzero) digits is 181440, while the sum is 43.

The square root of 6667015813 is about 81651.7961406851. The cubic root of 6667015813 is about 1882.1049131164.

The spelling of 6667015813 in words is "six billion, six hundred sixty-seven million, fifteen thousand, eight hundred thirteen".