163606422604656 has 20 divisors (see below), whose sum is σ = 422649925062152. Its totient is φ = 54535474201536.

The previous prime is 163606422604589. The next prime is 163606422604657. The reversal of 163606422604656 is 656406224606361.

It is a happy number.

163606422604656 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a junction number, because it is equal to n+sod(n) for n = 163606422604596 and 163606422604605.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (163606422604657) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1704233568751 + ... + 1704233568846.

Almost surely, 2^{163606422604656} is an apocalyptic number.

163606422604656 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

It is an amenable number.

163606422604656 is an abundant number, since it is smaller than the sum of its proper divisors (259043502457496).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

163606422604656 is a wasteful number, since it uses less digits than its factorization.

163606422604656 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3408467137608 (or 3408467137602 counting only the distinct ones).

The product of its (nonzero) digits is 44789760, while the sum is 57.

The spelling of 163606422604656 in words is "one hundred sixty-three trillion, six hundred six billion, four hundred twenty-two million, six hundred four thousand, six hundred fifty-six".