7215572116172 has 24 divisors (see below), whose sum is σ = 14462448258720. Its totient is φ = 3085680044160.

The previous prime is 7215572116153. The next prime is 7215572116199. The reversal of 7215572116172 is 2716112755127.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 279487097 + ... + 279512912.

It is an arithmetic number, because the mean of its divisors is an integer number (602602010780).

Almost surely, 2^{7215572116172} is an apocalyptic number.

It is an amenable number.

7215572116172 is an abundant number, since it is smaller than the sum of its proper divisors (7246876142548).

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

7215572116172 is a wasteful number, since it uses less digits than its factorization.

7215572116172 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 559000481 (or 559000479 counting only the distinct ones).

The product of its digits is 411600, while the sum is 47.

The spelling of 7215572116172 in words is "seven trillion, two hundred fifteen billion, five hundred seventy-two million, one hundred sixteen thousand, one hundred seventy-two".