1276466466551 has 2 divisors, whose sum is σ = 1276466466552. Its totient is φ = 1276466466550.

The previous prime is 1276466466523. The next prime is 1276466466559. The reversal of 1276466466551 is 1556646646721.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 1276466466551 - 2⁶ = 1276466466487 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1276466466559) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 638233233275 + 638233233276.

It is an arithmetic number, because the mean of its divisors is an integer number (638233233276).

Almost surely, 2^{1276466466551} is an apocalyptic number.

1276466466551 is a deficient number, since it is larger than the sum of its proper divisors (1).

1276466466551 is an equidigital number, since it uses as much as digits as its factorization.

1276466466551 is an evil number, because the sum of its binary digits is even.

The product of its digits is 43545600, while the sum is 59.

The spelling of 1276466466551 in words is "one trillion, two hundred seventy-six billion, four hundred sixty-six million, four hundred sixty-six thousand, five hundred fifty-one".