65766107651 has 2 divisors, whose sum is σ = 65766107652. Its totient is φ = 65766107650.

The previous prime is 65766107629. The next prime is 65766107723. The reversal of 65766107651 is 15670166756.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-65766107651 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 65766107651.

It is not a weakly prime, because it can be changed into another prime (65766107611) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 32883053825 + 32883053826.

It is an arithmetic number, because the mean of its divisors is an integer number (32883053826).

Almost surely, 2^65766107651 is an apocalyptic number.

65766107651 is a deficient number, since it is larger than the sum of its proper divisors (1).

65766107651 is an equidigital number, since it uses as much as digits as its factorization.

65766107651 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1587600, while the sum is 50.

The spelling of 65766107651 in words is "sixty-five billion, seven hundred sixty-six million, one hundred seven thousand, six hundred fifty-one".