77666733444334 has 8 divisors (see below), whose sum is σ = 117110048335488. Its totient is φ = 38630050665840.

The previous prime is 77666733444331. The next prime is 77666733444407. The reversal of 77666733444334 is 43344433766677.

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

It is a self number, because there is not a number n which added to its sum of digits gives 77666733444334.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (77666733444331) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 101658027687 + ... + 101658028450.

It is an arithmetic number, because the mean of its divisors is an integer number (14638756041936).

Almost surely, 2^{77666733444334} is an apocalyptic number.

77666733444334 is a deficient number, since it is larger than the sum of its proper divisors (39443314891154).

77666733444334 is a wasteful number, since it uses less digits than its factorization.

77666733444334 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 203316056330.

The product of its digits is 1536288768, while the sum is 67.

The spelling of 77666733444334 in words is "seventy-seven trillion, six hundred sixty-six billion, seven hundred thirty-three million, four hundred forty-four thousand, three hundred thirty-four".