22105147684 has 27 divisors (see below), whose sum is σ = 39221558481. Its totient is φ = 10901070960.

The previous prime is 22105147679. The next prime is 22105147709. The reversal of 22105147684 is 48674150122.

The square root of 22105147684 is 148678.

It is a perfect power (a square), and thus also a powerful number.

It can be written as a sum of positive squares in only one way, i.e., 13707258084 + 8397889600 = 117078^2 + 91640^2 .

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 8 ways as a sum of consecutive naturals, for example, 23490654 + ... + 23491594.

Almost surely, 2^22105147684 is an apocalyptic number.

22105147684 is the 148678-th square number.

It is an amenable number.

22105147684 is a deficient number, since it is larger than the sum of its proper divisors (17116410797).

22105147684 is an frugal number, since it uses more digits than its factorization.

22105147684 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2044 (or 1022 counting only the distinct ones).

The product of its (nonzero) digits is 107520, while the sum is 40.

The spelling of 22105147684 in words is "twenty-two billion, one hundred five million, one hundred forty-seven thousand, six hundred eighty-four".