22143661959 has 8 divisors (see below), whose sum is σ = 29539572352. Its totient is φ = 14755096440.

The previous prime is 22143661957. The next prime is 22143661963. The reversal of 22143661959 is 95916634122.

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

It is not a de Polignac number, because 22143661959 - 2¹ = 22143661957 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22143661951) 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, 1829179 + ... + 1841244.

It is an arithmetic number, because the mean of its divisors is an integer number (3692446544).

Almost surely, 2^22143661959 is an apocalyptic number.

22143661959 is a deficient number, since it is larger than the sum of its proper divisors (7395910393).

22143661959 is a wasteful number, since it uses less digits than its factorization.

22143661959 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3672437.

The product of its digits is 699840, while the sum is 48.

The spelling of 22143661959 in words is "twenty-two billion, one hundred forty-three million, six hundred sixty-one thousand, nine hundred fifty-nine".