136221456463 has 2 divisors, whose sum is σ = 136221456464. Its totient is φ = 136221456462.

The previous prime is 136221456451. The next prime is 136221456521. The reversal of 136221456463 is 364654122631.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 136221456463 - 2⁵ = 136221456431 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (136221456443) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 68110728231 + 68110728232.

It is an arithmetic number, because the mean of its divisors is an integer number (68110728232).

Almost surely, 2^136221456463 is an apocalyptic number.

136221456463 is a deficient number, since it is larger than the sum of its proper divisors (1).

136221456463 is an equidigital number, since it uses as much as digits as its factorization.

136221456463 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 622080, while the sum is 43.

The spelling of 136221456463 in words is "one hundred thirty-six billion, two hundred twenty-one million, four hundred fifty-six thousand, four hundred sixty-three".