221671200005163 has 12 divisors (see below), whose sum is σ = 320213481255720. Its totient is φ = 147770762504256.

The previous prime is 221671200005159. The next prime is 221671200005179. The reversal of 221671200005163 is 361500002176122.

221671200005163 is a `hidden beast` number, since 2 + 2 + 16 + 7 + 120 + 0 + 0 + 0 + 516 + 3 = 666.

It is not a de Polignac number, because 221671200005163 - 2² = 221671200005159 is a prime.

It is a super-2 number, since 2×221671200005163² (a number of 29 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (221671200005863) by changing a digit.

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 11 ways as a sum of consecutive naturals, for example, 836318398 + ... + 836583411.

It is an arithmetic number, because the mean of its divisors is an integer number (26684456771310).

Almost surely, 2^{221671200005163} is an apocalyptic number.

221671200005163 is a deficient number, since it is larger than the sum of its proper divisors (98542281250557).

221671200005163 is a wasteful number, since it uses less digits than its factorization.

221671200005163 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1672916538 (or 1672916535 counting only the distinct ones).

The product of its (nonzero) digits is 30240, while the sum is 36.

The spelling of 221671200005163 in words is "two hundred twenty-one trillion, six hundred seventy-one billion, two hundred million, five thousand, one hundred sixty-three".