163611605223602 has 16 divisors (see below), whose sum is σ = 251910353395224. Its totient is φ = 79668043440000.

The previous prime is 163611605223587. The next prime is 163611605223673. The reversal of 163611605223602 is 206322506116361.

It can be written as a sum of positive squares in 4 ways, for example, as 82840924686601 + 80770680537001 = 9101699^2 + 8987251^2 .

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 6638991299 + ... + 6639015942.

Almost surely, 2^{163611605223602} is an apocalyptic number.

163611605223602 is a deficient number, since it is larger than the sum of its proper divisors (88298748171622).

163611605223602 is a wasteful number, since it uses less digits than its factorization.

163611605223602 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13278007405.

The product of its (nonzero) digits is 466560, while the sum is 44.

The spelling of 163611605223602 in words is "one hundred sixty-three trillion, six hundred eleven billion, six hundred five million, two hundred twenty-three thousand, six hundred two".