1369166131481 has 2 divisors, whose sum is σ = 1369166131482. Its totient is φ = 1369166131480.

The previous prime is 1369166131477. The next prime is 1369166131507. The reversal of 1369166131481 is 1841316619631.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1267335577600 + 101830553881 = 1125760^2 + 319109^2 .

It is a cyclic number.

It is not a de Polignac number, because 1369166131481 - 2² = 1369166131477 is a prime.

It is a super-2 number, since 2×1369166131481² (a number of 25 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (1369166131181) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 684583065740 + 684583065741.

It is an arithmetic number, because the mean of its divisors is an integer number (684583065741).

Almost surely, 2^{1369166131481} is an apocalyptic number.

It is an amenable number.

1369166131481 is a deficient number, since it is larger than the sum of its proper divisors (1).

1369166131481 is an equidigital number, since it uses as much as digits as its factorization.

1369166131481 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 559872, while the sum is 50.

The spelling of 1369166131481 in words is "one trillion, three hundred sixty-nine billion, one hundred sixty-six million, one hundred thirty-one thousand, four hundred eighty-one".