322271721663 has 4 divisors (see below), whose sum is σ = 429695628888. Its totient is φ = 214847814440.

The previous prime is 322271721661. The next prime is 322271721671. The reversal of 322271721663 is 366127172223.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 322271721663 - 2¹ = 322271721661 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (322271721661) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 53711953608 + ... + 53711953613.

It is an arithmetic number, because the mean of its divisors is an integer number (107423907222).

Almost surely, 2^322271721663 is an apocalyptic number.

322271721663 is a deficient number, since it is larger than the sum of its proper divisors (107423907225).

322271721663 is a wasteful number, since it uses less digits than its factorization.

322271721663 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 107423907224.

The product of its digits is 254016, while the sum is 42.

Adding to 322271721663 its reverse (366127172223), we get a palindrome (688398893886).

The spelling of 322271721663 in words is "three hundred twenty-two billion, two hundred seventy-one million, seven hundred twenty-one thousand, six hundred sixty-three".