65365116980437 has 2 divisors, whose sum is σ = 65365116980438. Its totient is φ = 65365116980436.

The previous prime is 65365116980353. The next prime is 65365116980507. The reversal of 65365116980437 is 73408961156356.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 60868176861636 + 4496940118801 = 7801806^2 + 2120599^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-65365116980437 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (65365116980237) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 32682558490218 + 32682558490219.

It is an arithmetic number, because the mean of its divisors is an integer number (32682558490219).

Almost surely, 2^{65365116980437} is an apocalyptic number.

It is an amenable number.

65365116980437 is a deficient number, since it is larger than the sum of its proper divisors (1).

65365116980437 is an equidigital number, since it uses as much as digits as its factorization.

65365116980437 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 97977600, while the sum is 64.

The spelling of 65365116980437 in words is "sixty-five trillion, three hundred sixty-five billion, one hundred sixteen million, nine hundred eighty thousand, four hundred thirty-seven".