65125635162139 has 2 divisors, whose sum is σ = 65125635162140. Its totient is φ = 65125635162138.

The previous prime is 65125635162113. The next prime is 65125635162151. The reversal of 65125635162139 is 93126153652156.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 65125635162139 - 2¹⁹ = 65125634637851 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 65125635162139.

It is not a weakly prime, because it can be changed into another prime (65125635162739) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 32562817581069 + 32562817581070.

It is an arithmetic number, because the mean of its divisors is an integer number (32562817581070).

Almost surely, 2^{65125635162139} is an apocalyptic number.

65125635162139 is a deficient number, since it is larger than the sum of its proper divisors (1).

65125635162139 is an equidigital number, since it uses as much as digits as its factorization.

65125635162139 is an evil number, because the sum of its binary digits is even.

The product of its digits is 8748000, while the sum is 55.

The spelling of 65125635162139 in words is "sixty-five trillion, one hundred twenty-five billion, six hundred thirty-five million, one hundred sixty-two thousand, one hundred thirty-nine".