72216447288 has 16 divisors (see below), whose sum is σ = 180541118280. Its totient is φ = 24072149088.

The previous prime is 72216447269. The next prime is 72216447299. The reversal of 72216447288 is 88274461227.

It is a self number, because there is not a number n which added to its sum of digits gives 72216447288.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1504509295 + ... + 1504509342.

Almost surely, 2^72216447288 is an apocalyptic number.

It is an amenable number.

72216447288 is an abundant number, since it is smaller than the sum of its proper divisors (108324670992).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

72216447288 is a wasteful number, since it uses less digits than its factorization.

72216447288 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3009018646 (or 3009018642 counting only the distinct ones).

The product of its digits is 2408448, while the sum is 51.

The spelling of 72216447288 in words is "seventy-two billion, two hundred sixteen million, four hundred forty-seven thousand, two hundred eighty-eight".