22163747346721 has 8 divisors (see below), whose sum is σ = 22182858198720. Its totient is φ = 22144638248208.

The previous prime is 22163747346707. The next prime is 22163747346743. The reversal of 22163747346721 is 12764374736122.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 22163747346721 - 2³⁷ = 22026308393249 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (22163747346421) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 25513300 + ... + 26367706.

It is an arithmetic number, because the mean of its divisors is an integer number (2772857274840).

Almost surely, 2^{22163747346721} is an apocalyptic number.

It is an amenable number.

22163747346721 is a deficient number, since it is larger than the sum of its proper divisors (19110851999).

22163747346721 is a wasteful number, since it uses less digits than its factorization.

22163747346721 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 876743.

The product of its digits is 14224896, while the sum is 55.

The spelling of 22163747346721 in words is "twenty-two trillion, one hundred sixty-three billion, seven hundred forty-seven million, three hundred forty-six thousand, seven hundred twenty-one".