221655006321339 has 16 divisors (see below), whose sum is σ = 316367538019200. Its totient is φ = 137619879034176.

The previous prime is 221655006321317. The next prime is 221655006321341. The reversal of 221655006321339 is 933123600556122.

221655006321339 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 221655006321339 - 2⁸ = 221655006321083 is a prime.

It is not an unprimeable number, because it can be changed into a prime (221655006321239) 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, 32954948514 + ... + 32954955239.

It is an arithmetic number, because the mean of its divisors is an integer number (19772971126200).

Almost surely, 2^{221655006321339} is an apocalyptic number.

221655006321339 is a deficient number, since it is larger than the sum of its proper divisors (94712531697861).

221655006321339 is a wasteful number, since it uses less digits than its factorization.

221655006321339 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 65909903834.

The product of its (nonzero) digits is 1749600, while the sum is 48.

The spelling of 221655006321339 in words is "two hundred twenty-one trillion, six hundred fifty-five billion, six million, three hundred twenty-one thousand, three hundred thirty-nine".