1660313762369 has 2 divisors, whose sum is σ = 1660313762370. Its totient is φ = 1660313762368.

The previous prime is 1660313762311. The next prime is 1660313762383. The reversal of 1660313762369 is 9632673130661.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1263241123600 + 397072638769 = 1123940^2 + 630137^2 .

It is a cyclic number.

It is not a de Polignac number, because 1660313762369 - 2²⁸ = 1660045326913 is a prime.

It is a super-2 number, since 2×1660313762369² (a number of 25 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 1660313762369.

It is not a weakly prime, because it can be changed into another prime (1660313762399) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 830156881184 + 830156881185.

It is an arithmetic number, because the mean of its divisors is an integer number (830156881185).

Almost surely, 2^{1660313762369} is an apocalyptic number.

It is an amenable number.

1660313762369 is a deficient number, since it is larger than the sum of its proper divisors (1).

1660313762369 is an equidigital number, since it uses as much as digits as its factorization.

1660313762369 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 4408992, while the sum is 53.

The spelling of 1660313762369 in words is "one trillion, six hundred sixty billion, three hundred thirteen million, seven hundred sixty-two thousand, three hundred sixty-nine".