1366022556331 has 2 divisors, whose sum is σ = 1366022556332. Its totient is φ = 1366022556330.

The previous prime is 1366022556319. The next prime is 1366022556359. The reversal of 1366022556331 is 1336552206631.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 1366022556331 - 2⁵ = 1366022556299 is a prime.

It is a super-2 number, since 2×1366022556331² (a number of 25 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (1366022556631) 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, 683011278165 + 683011278166.

It is an arithmetic number, because the mean of its divisors is an integer number (683011278166).

Almost surely, 2^{1366022556331} is an apocalyptic number.

1366022556331 is a deficient number, since it is larger than the sum of its proper divisors (1).

1366022556331 is an equidigital number, since it uses as much as digits as its factorization.

1366022556331 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 583200, while the sum is 43.

The spelling of 1366022556331 in words is "one trillion, three hundred sixty-six billion, twenty-two million, five hundred fifty-six thousand, three hundred thirty-one".