22345661543 has 8 divisors (see below), whose sum is σ = 23669969040. Its totient is φ = 21022449280.

The previous prime is 22345661519. The next prime is 22345661551. The reversal of 22345661543 is 34516654322.

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 22345661543 - 2⁸ = 22345661287 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 22345661543.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22345661573) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 231608 + ... + 313581.

It is an arithmetic number, because the mean of its divisors is an integer number (2958746130).

Almost surely, 2^22345661543 is an apocalyptic number.

22345661543 is a deficient number, since it is larger than the sum of its proper divisors (1324307497).

22345661543 is a wasteful number, since it uses less digits than its factorization.

22345661543 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 547617.

The product of its digits is 518400, while the sum is 41.

The spelling of 22345661543 in words is "twenty-two billion, three hundred forty-five million, six hundred sixty-one thousand, five hundred forty-three".