76992717665555 has 16 divisors (see below), whose sum is σ = 92507625182784. Its totient is φ = 61516604787840.

The previous prime is 76992717665503. The next prime is 76992717665557. The reversal of 76992717665555 is 55556671729967.

It is not a de Polignac number, because 76992717665555 - 2¹⁰ = 76992717664531 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 76992717665555.

It is not an unprimeable number, because it can be changed into a prime (76992717665557) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 95052365 + ... + 95858945.

It is an arithmetic number, because the mean of its divisors is an integer number (5781726573924).

Almost surely, 2^{76992717665555} is an apocalyptic number.

76992717665555 is a deficient number, since it is larger than the sum of its proper divisors (15514907517229).

76992717665555 is a wasteful number, since it uses less digits than its factorization.

76992717665555 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 830606.

The product of its digits is 7501410000, while the sum is 80.

The spelling of 76992717665555 in words is "seventy-six trillion, nine hundred ninety-two billion, seven hundred seventeen million, six hundred sixty-five thousand, five hundred fifty-five".