163655523 has 12 divisors (see below), whose sum is σ = 237073200. Its totient is φ = 108788976.

The previous prime is 163655521. The next prime is 163655563. The reversal of 163655523 is 325556361.

163655523 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 163655523 - 2¹ = 163655521 is a prime.

It is not an unprimeable number, because it can be changed into a prime (163655521) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 22911 + ... + 29192.

It is an arithmetic number, because the mean of its divisors is an integer number (19756100).

Almost surely, 2^163655523 is an apocalyptic number.

163655523 is a deficient number, since it is larger than the sum of its proper divisors (73417677).

163655523 is a wasteful number, since it uses less digits than its factorization.

163655523 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 52458 (or 52455 counting only the distinct ones).

The product of its digits is 81000, while the sum is 36.

The square root of 163655523 is about 12792.7918375935. The cubic root of 163655523 is about 546.9868539119.

The spelling of 163655523 in words is "one hundred sixty-three million, six hundred fifty-five thousand, five hundred twenty-three".