76666666686835 has 32 divisors (see below), whose sum is σ = 100788616612800. Its totient is φ = 55725097021440.

The previous prime is 76666666686833. The next prime is 76666666686887. The reversal of 76666666686835 is 53868666666667.

It is not a de Polignac number, because 76666666686835 - 2¹ = 76666666686833 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (85).

It is not an unprimeable number, because it can be changed into a prime (76666666686833) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 11201415 + ... + 16697455.

It is an arithmetic number, because the mean of its divisors is an integer number (3149644269150).

Almost surely, 2^{76666666686835} is an apocalyptic number.

76666666686835 is a deficient number, since it is larger than the sum of its proper divisors (24121949925965).

76666666686835 is a wasteful number, since it uses less digits than its factorization.

76666666686835 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5501751.

The product of its digits is 67722117120, while the sum is 85.

The spelling of 76666666686835 in words is "seventy-six trillion, six hundred sixty-six billion, six hundred sixty-six million, six hundred eighty-six thousand, eight hundred thirty-five".