254660254663 has 2 divisors, whose sum is σ = 254660254664. Its totient is φ = 254660254662.

The previous prime is 254660254661. The next prime is 254660254691. The reversal of 254660254663 is 366452066452.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 254660254663 - 2¹ = 254660254661 is a prime.

Together with 254660254661, it forms a pair of twin primes.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (254660254661) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 127330127331 + 127330127332.

It is an arithmetic number, because the mean of its divisors is an integer number (127330127332).

Almost surely, 2^254660254663 is an apocalyptic number.

254660254663 is a deficient number, since it is larger than the sum of its proper divisors (1).

254660254663 is an equidigital number, since it uses as much as digits as its factorization.

254660254663 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 6220800, while the sum is 49.

The spelling of 254660254663 in words is "two hundred fifty-four billion, six hundred sixty million, two hundred fifty-four thousand, six hundred sixty-three".