76706350664665 has 4 divisors (see below), whose sum is σ = 92047620797604. Its totient is φ = 61365080531728.

The previous prime is 76706350664663. The next prime is 76706350664677. The reversal of 76706350664665 is 56646605360767.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 27677058288201 + 49029292376464 = 5260899^2 + 7002092^2 .

It is a cyclic number.

It is not a de Polignac number, because 76706350664665 - 2¹ = 76706350664663 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 76706350664665.

It is not an unprimeable number, because it can be changed into a prime (76706350664663) 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, 7670635066462 + ... + 7670635066471.

It is an arithmetic number, because the mean of its divisors is an integer number (23011905199401).

Almost surely, 2^{76706350664665} is an apocalyptic number.

It is an amenable number.

76706350664665 is a deficient number, since it is larger than the sum of its proper divisors (15341270132939).

76706350664665 is a wasteful number, since it uses less digits than its factorization.

76706350664665 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15341270132938.

The product of its (nonzero) digits is 685843200, while the sum is 67.

The spelling of 76706350664665 in words is "seventy-six trillion, seven hundred six billion, three hundred fifty million, six hundred sixty-four thousand, six hundred sixty-five".