65662258397 has 2 divisors, whose sum is σ = 65662258398. Its totient is φ = 65662258396.

The previous prime is 65662258357. The next prime is 65662258483. The reversal of 65662258397 is 79385226656.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 55653056281 + 10009202116 = 235909^2 + 100046^2 .

It is a cyclic number.

It is not a de Polignac number, because 65662258397 - 2¹⁰ = 65662257373 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (65662258357) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 32831129198 + 32831129199.

It is an arithmetic number, because the mean of its divisors is an integer number (32831129199).

Almost surely, 2^65662258397 is an apocalyptic number.

It is an amenable number.

65662258397 is a deficient number, since it is larger than the sum of its proper divisors (1).

65662258397 is an equidigital number, since it uses as much as digits as its factorization.

65662258397 is an evil number, because the sum of its binary digits is even.

The product of its digits is 32659200, while the sum is 59.

The spelling of 65662258397 in words is "sixty-five billion, six hundred sixty-two million, two hundred fifty-eight thousand, three hundred ninety-seven".