65497258751 has 2 divisors, whose sum is σ = 65497258752. Its totient is φ = 65497258750.

The previous prime is 65497258747. The next prime is 65497258781. The reversal of 65497258751 is 15785279456.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 65497258751 - 2² = 65497258747 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (65497258781) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 32748629375 + 32748629376.

It is an arithmetic number, because the mean of its divisors is an integer number (32748629376).

Almost surely, 2^65497258751 is an apocalyptic number.

65497258751 is a deficient number, since it is larger than the sum of its proper divisors (1).

65497258751 is an equidigital number, since it uses as much as digits as its factorization.

65497258751 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 21168000, while the sum is 59.

The spelling of 65497258751 in words is "sixty-five billion, four hundred ninety-seven million, two hundred fifty-eight thousand, seven hundred fifty-one".