7216171205025 has 24 divisors (see below), whose sum is σ = 12558669889120. Its totient is φ = 3646065450240.

The previous prime is 7216171205017. The next prime is 7216171205029. The reversal of 7216171205025 is 5205021716127.

It is not a de Polignac number, because 7216171205025 - 2³ = 7216171205017 is a prime.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (7216171205029) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 2531988472 + ... + 2531991321.

Almost surely, 2^{7216171205025} is an apocalyptic number.

7216171205025 is a gapful number since it is divisible by the number (75) formed by its first and last digit.

It is an amenable number.

7216171205025 is a deficient number, since it is larger than the sum of its proper divisors (5342498684095).

7216171205025 is a wasteful number, since it uses less digits than its factorization.

7216171205025 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5063979825 (or 5063979820 counting only the distinct ones).

The product of its (nonzero) digits is 58800, while the sum is 39.

The spelling of 7216171205025 in words is "seven trillion, two hundred sixteen billion, one hundred seventy-one million, two hundred five thousand, twenty-five".