22179516545 has 8 divisors (see below), whose sum is σ = 26617740480. Its totient is φ = 17742066160.

The previous prime is 22179516523. The next prime is 22179516551. The reversal of 22179516545 is 54561597122.

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

It is not a de Polignac number, because 22179516545 - 2⁶ = 22179516481 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 22179516545.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 128315 + ... + 246624.

It is an arithmetic number, because the mean of its divisors is an integer number (3327217560).

Almost surely, 2^22179516545 is an apocalyptic number.

It is an amenable number.

22179516545 is a deficient number, since it is larger than the sum of its proper divisors (4438223935).

22179516545 is a wasteful number, since it uses less digits than its factorization.

22179516545 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 386775.

The product of its digits is 756000, while the sum is 47.

The spelling of 22179516545 in words is "twenty-two billion, one hundred seventy-nine million, five hundred sixteen thousand, five hundred forty-five".