66666667334 has 8 divisors (see below), whose sum is σ = 100059994008. Its totient is φ = 33313336000.

The previous prime is 66666667307. The next prime is 66666667337. The reversal of 66666667334 is 43376666666.

66666667334 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (66666667337) 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, 9994667 + ... + 10001334.

It is an arithmetic number, because the mean of its divisors is an integer number (12507499251).

Almost surely, 2^66666667334 is an apocalyptic number.

66666667334 is a deficient number, since it is larger than the sum of its proper divisors (33393326674).

66666667334 is a wasteful number, since it uses less digits than its factorization.

66666667334 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19997670.

The product of its digits is 70543872, while the sum is 59.

It can be divided in two parts, 66666 and 667334, that multiplied together give a palindrome (44488488444).

The spelling of 66666667334 in words is "sixty-six billion, six hundred sixty-six million, six hundred sixty-seven thousand, three hundred thirty-four".