1580120697149 has 2 divisors, whose sum is σ = 1580120697150. Its totient is φ = 1580120697148.

The previous prime is 1580120697101. The next prime is 1580120697203. The reversal of 1580120697149 is 9417960210851.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1514844024100 + 65276673049 = 1230790^2 + 255493^2 .

It is a cyclic number.

It is not a de Polignac number, because 1580120697149 - 2¹⁶ = 1580120631613 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 1580120697149.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1580120697349) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 790060348574 + 790060348575.

It is an arithmetic number, because the mean of its divisors is an integer number (790060348575).

Almost surely, 2^{1580120697149} is an apocalyptic number.

It is an amenable number.

1580120697149 is a deficient number, since it is larger than the sum of its proper divisors (1).

1580120697149 is an equidigital number, since it uses as much as digits as its factorization.

1580120697149 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1088640, while the sum is 53.

The spelling of 1580120697149 in words is "one trillion, five hundred eighty billion, one hundred twenty million, six hundred ninety-seven thousand, one hundred forty-nine".