2173322466721 has 48 divisors (see below), whose sum is σ = 2605230465024. Its totient is φ = 1806685878816.

The previous prime is 2173322466701. The next prime is 2173322466727. The reversal of 2173322466721 is 1276642233712.

It is not a de Polignac number, because 2173322466721 - 2¹¹ = 2173322464673 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2173322466727) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 488714320 + ... + 488718766.

It is an arithmetic number, because the mean of its divisors is an integer number (54275634688).

Almost surely, 2^{2173322466721} is an apocalyptic number.

It is an amenable number.

2173322466721 is a deficient number, since it is larger than the sum of its proper divisors (431907998303).

2173322466721 is a wasteful number, since it uses less digits than its factorization.

2173322466721 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6090 (or 6083 counting only the distinct ones).

The product of its digits is 1016064, while the sum is 46.

The spelling of 2173322466721 in words is "two trillion, one hundred seventy-three billion, three hundred twenty-two million, four hundred sixty-six thousand, seven hundred twenty-one".