1366636726051 has 2 divisors, whose sum is σ = 1366636726052. Its totient is φ = 1366636726050.

The previous prime is 1366636725989. The next prime is 1366636726069. The reversal of 1366636726051 is 1506276366631.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1366636726051 is a prime.

It is a super-3 number, since 3×1366636726051³ (a number of 37 digits) contains 333 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 1366636726051.

It is not a weakly prime, because it can be changed into another prime (1366636720051) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 683318363025 + 683318363026.

It is an arithmetic number, because the mean of its divisors is an integer number (683318363026).

Almost surely, 2^{1366636726051} is an apocalyptic number.

1366636726051 is a deficient number, since it is larger than the sum of its proper divisors (1).

1366636726051 is an equidigital number, since it uses as much as digits as its factorization.

1366636726051 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 4898880, while the sum is 52.

The spelling of 1366636726051 in words is "one trillion, three hundred sixty-six billion, six hundred thirty-six million, seven hundred twenty-six thousand, fifty-one".