163641136627 has 2 divisors, whose sum is σ = 163641136628. Its totient is φ = 163641136626.

The previous prime is 163641136591. The next prime is 163641136639. The reversal of 163641136627 is 726631146361.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 163641136627 - 2¹⁵ = 163641103859 is a prime.

It is not a weakly prime, because it can be changed into another prime (163641136427) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 81820568313 + 81820568314.

It is an arithmetic number, because the mean of its divisors is an integer number (81820568314).

Almost surely, 2^163641136627 is an apocalyptic number.

163641136627 is a deficient number, since it is larger than the sum of its proper divisors (1).

163641136627 is an equidigital number, since it uses as much as digits as its factorization.

163641136627 is an evil number, because the sum of its binary digits is even.

The product of its digits is 653184, while the sum is 46.

The spelling of 163641136627 in words is "one hundred sixty-three billion, six hundred forty-one million, one hundred thirty-six thousand, six hundred twenty-seven".