1366070521511 has 2 divisors, whose sum is σ = 1366070521512. Its totient is φ = 1366070521510.

The previous prime is 1366070521471. The next prime is 1366070521513. The reversal of 1366070521511 is 1151250706631.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 1366070521511 - 2¹⁴ = 1366070505127 is a prime.

It is a super-2 number, since 2×1366070521511² (a number of 25 digits) contains 22 as substring.

Together with 1366070521513, it forms a pair of twin primes.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1366070521513) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 683035260755 + 683035260756.

It is an arithmetic number, because the mean of its divisors is an integer number (683035260756).

Almost surely, 2^{1366070521511} is an apocalyptic number.

1366070521511 is a deficient number, since it is larger than the sum of its proper divisors (1).

1366070521511 is an equidigital number, since it uses as much as digits as its factorization.

1366070521511 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 37800, while the sum is 38.

The spelling of 1366070521511 in words is "one trillion, three hundred sixty-six billion, seventy million, five hundred twenty-one thousand, five hundred eleven".