12654454163591 has 2 divisors, whose sum is σ = 12654454163592. Its totient is φ = 12654454163590.

The previous prime is 12654454163587. The next prime is 12654454163653. The reversal of 12654454163591 is 19536145445621.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 12654454163591 - 2² = 12654454163587 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (12654454163521) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6327227081795 + 6327227081796.

It is an arithmetic number, because the mean of its divisors is an integer number (6327227081796).

Almost surely, 2^{12654454163591} is an apocalyptic number.

12654454163591 is a deficient number, since it is larger than the sum of its proper divisors (1).

12654454163591 is an equidigital number, since it uses as much as digits as its factorization.

12654454163591 is an evil number, because the sum of its binary digits is even.

The product of its digits is 15552000, while the sum is 56.

The spelling of 12654454163591 in words is "twelve trillion, six hundred fifty-four billion, four hundred fifty-four million, one hundred sixty-three thousand, five hundred ninety-one".