65948396461 has 2 divisors, whose sum is σ = 65948396462. Its totient is φ = 65948396460.

The previous prime is 65948396431. The next prime is 65948396471. The reversal of 65948396461 is 16469384956.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 54186993961 + 11761402500 = 232781^2 + 108450^2 .

It is a cyclic number.

It is not a de Polignac number, because 65948396461 - 2³³ = 57358461869 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 65948396461.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (65948396431) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 32974198230 + 32974198231.

It is an arithmetic number, because the mean of its divisors is an integer number (32974198231).

Almost surely, 2^65948396461 is an apocalyptic number.

It is an amenable number.

65948396461 is a deficient number, since it is larger than the sum of its proper divisors (1).

65948396461 is an equidigital number, since it uses as much as digits as its factorization.

65948396461 is an evil number, because the sum of its binary digits is even.

The product of its digits is 33592320, while the sum is 61.

The spelling of 65948396461 in words is "sixty-five billion, nine hundred forty-eight million, three hundred ninety-six thousand, four hundred sixty-one".