221466305159 has 16 divisors (see below), whose sum is σ = 247893712416. Its totient is φ = 196103846400.

The previous prime is 221466305153. The next prime is 221466305201. The reversal of 221466305159 is 951503664122.

It is not a de Polignac number, because 221466305159 - 2²⁰ = 221465256583 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (221466305153) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 119672 + ... + 676205.

It is an arithmetic number, because the mean of its divisors is an integer number (15493357026).

Almost surely, 2^221466305159 is an apocalyptic number.

221466305159 is a deficient number, since it is larger than the sum of its proper divisors (26427407257).

221466305159 is a wasteful number, since it uses less digits than its factorization.

221466305159 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 796546.

The product of its (nonzero) digits is 388800, while the sum is 44.

It can be divided in two parts, 221466 and 305159, that added together give a palindrome (526625).

The spelling of 221466305159 in words is "two hundred twenty-one billion, four hundred sixty-six million, three hundred five thousand, one hundred fifty-nine".