163220506044506 has 32 divisors (see below), whose sum is σ = 246961286208000. Its totient is φ = 80902330542000.

The previous prime is 163220506044481. The next prime is 163220506044523. The reversal of 163220506044506 is 605440605022361.

It is a happy number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 4160902865 + ... + 4160942091.

It is an arithmetic number, because the mean of its divisors is an integer number (7717540194000).

Almost surely, 2^{163220506044506} is an apocalyptic number.

163220506044506 is a deficient number, since it is larger than the sum of its proper divisors (83740780163494).

163220506044506 is a wasteful number, since it uses less digits than its factorization.

163220506044506 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 67490.

The product of its (nonzero) digits is 1036800, while the sum is 44.

The spelling of 163220506044506 in words is "one hundred sixty-three trillion, two hundred twenty billion, five hundred six million, forty-four thousand, five hundred six".