163087255567 has 2 divisors, whose sum is σ = 163087255568. Its totient is φ = 163087255566.

The previous prime is 163087255549. The next prime is 163087255571. The reversal of 163087255567 is 765552780361.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-163087255567 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (163087255547) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 81543627783 + 81543627784.

It is an arithmetic number, because the mean of its divisors is an integer number (81543627784).

Almost surely, 2^163087255567 is an apocalyptic number.

163087255567 is a deficient number, since it is larger than the sum of its proper divisors (1).

163087255567 is an equidigital number, since it uses as much as digits as its factorization.

163087255567 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 10584000, while the sum is 55.

The spelling of 163087255567 in words is "one hundred sixty-three billion, eighty-seven million, two hundred fifty-five thousand, five hundred sixty-seven".