22125563643 has 8 divisors (see below), whose sum is σ = 29570826256. Its totient is φ = 14715338400.

The previous prime is 22125563641. The next prime is 22125563653. The reversal of 22125563643 is 34636552122.

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

It is not a de Polignac number, because 22125563643 - 2¹ = 22125563641 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (22125563641) 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, 8757868 + ... + 8760393.

It is an arithmetic number, because the mean of its divisors is an integer number (3696353282).

Almost surely, 2^22125563643 is an apocalyptic number.

22125563643 is a deficient number, since it is larger than the sum of its proper divisors (7445262613).

22125563643 is a wasteful number, since it uses less digits than its factorization.

22125563643 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17518685.

The product of its digits is 259200, while the sum is 39.

The spelling of 22125563643 in words is "twenty-two billion, one hundred twenty-five million, five hundred sixty-three thousand, six hundred forty-three".