6666767013 has 4 divisors (see below), whose sum is σ = 8889022688. Its totient is φ = 4444511340.

The previous prime is 6666767011. The next prime is 6666767057. The reversal of 6666767013 is 3107676666.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is not a de Polignac number, because 6666767013 - 2¹ = 6666767011 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6666767011) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1111127833 + ... + 1111127838.

It is an arithmetic number, because the mean of its divisors is an integer number (2222255672).

Almost surely, 2^6666767013 is an apocalyptic number.

It is an amenable number.

6666767013 is a deficient number, since it is larger than the sum of its proper divisors (2222255675).

6666767013 is a wasteful number, since it uses less digits than its factorization.

6666767013 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2222255674.

The product of its (nonzero) digits is 1143072, while the sum is 48.

The square root of 6666767013 is about 81650.2725837459. The cubic root of 6666767013 is about 1882.0815006662.

The spelling of 6666767013 in words is "six billion, six hundred sixty-six million, seven hundred sixty-seven thousand, thirteen".