12163336943551 has 2 divisors, whose sum is σ = 12163336943552. Its totient is φ = 12163336943550.

The previous prime is 12163336943519. The next prime is 12163336943557. The reversal of 12163336943551 is 15534963336121.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 12163336943551 - 2⁵ = 12163336943519 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (12163336943557) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6081668471775 + 6081668471776.

It is an arithmetic number, because the mean of its divisors is an integer number (6081668471776).

Almost surely, 2^{12163336943551} is an apocalyptic number.

12163336943551 is a deficient number, since it is larger than the sum of its proper divisors (1).

12163336943551 is an equidigital number, since it uses as much as digits as its factorization.

12163336943551 is an evil number, because the sum of its binary digits is even.

The product of its digits is 5248800, while the sum is 52.

The spelling of 12163336943551 in words is "twelve trillion, one hundred sixty-three billion, three hundred thirty-six million, nine hundred forty-three thousand, five hundred fifty-one".