22160561643 has 12 divisors (see below), whose sum is σ = 34919673048. Its totient is φ = 13430643360.

The previous prime is 22160561627. The next prime is 22160561777. The reversal of 22160561643 is 34616506122.

22160561643 is a `hidden beast` number, since 2 + 2 + 1 + 6 + 0 + 5 + 6 + 1 + 643 = 666.

It is not a de Polignac number, because 22160561643 - 2⁴ = 22160561627 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 22160561598 and 22160561607.

It is not an unprimeable number, because it can be changed into a prime (22160561443) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 111921930 + ... + 111922127.

It is an arithmetic number, because the mean of its divisors is an integer number (2909972754).

Almost surely, 2^22160561643 is an apocalyptic number.

22160561643 is a deficient number, since it is larger than the sum of its proper divisors (12759111405).

22160561643 is a wasteful number, since it uses less digits than its factorization.

22160561643 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 223844074 (or 223844071 counting only the distinct ones).

The product of its (nonzero) digits is 51840, while the sum is 36.

The spelling of 22160561643 in words is "twenty-two billion, one hundred sixty million, five hundred sixty-one thousand, six hundred forty-three".