77116695656651 has 16 divisors (see below), whose sum is σ = 89631685000704. Its totient is φ = 64982184842304.

The previous prime is 77116695656633. The next prime is 77116695656669. The reversal of 77116695656651 is 15665659661177.

It is an interprime number because it is at equal distance from previous prime (77116695656633) and next prime (77116695656669).

It is not a de Polignac number, because 77116695656651 - 2²² = 77116691462347 is a prime.

It is not an unprimeable number, because it can be changed into a prime (77116695659651) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 245630255 + ... + 245944008.

It is an arithmetic number, because the mean of its divisors is an integer number (5601980312544).

Almost surely, 2^{77116695656651} is an apocalyptic number.

77116695656651 is a deficient number, since it is larger than the sum of its proper divisors (12514989344053).

77116695656651 is a wasteful number, since it uses less digits than its factorization.

77116695656651 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 491574650.

The product of its digits is 428652000, while the sum is 71.

The spelling of 77116695656651 in words is "seventy-seven trillion, one hundred sixteen billion, six hundred ninety-five million, six hundred fifty-six thousand, six hundred fifty-one".