125601606351569 has 2 divisors, whose sum is σ = 125601606351570. Its totient is φ = 125601606351568.

The previous prime is 125601606351497. The next prime is 125601606351653. The reversal of 125601606351569 is 965153606106521.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 67593276009169 + 58008330342400 = 8221513^2 + 7616320^2 .

It is a cyclic number.

It is not a de Polignac number, because 125601606351569 - 2¹⁶ = 125601606286033 is a prime.

It is a super-2 number, since 2×125601606351569² (a number of 29 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (125601606351769) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 62800803175784 + 62800803175785.

It is an arithmetic number, because the mean of its divisors is an integer number (62800803175785).

Almost surely, 2^{125601606351569} is an apocalyptic number.

It is an amenable number.

125601606351569 is a deficient number, since it is larger than the sum of its proper divisors (1).

125601606351569 is an equidigital number, since it uses as much as digits as its factorization.

125601606351569 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 8748000, while the sum is 56.

The spelling of 125601606351569 in words is "one hundred twenty-five trillion, six hundred one billion, six hundred six million, three hundred fifty-one thousand, five hundred sixty-nine".