72205087216 has 10 divisors (see below), whose sum is σ = 139897356512. Its totient is φ = 36102543600.

The previous prime is 72205087187. The next prime is 72205087217. The reversal of 72205087216 is 61278050227.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (72205087217) by changing a digit.

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 as a sum of consecutive naturals, namely, 2256408960 + ... + 2256408991.

Almost surely, 2^72205087216 is an apocalyptic number.

It is an amenable number.

72205087216 is a deficient number, since it is larger than the sum of its proper divisors (67692269296).

72205087216 is a wasteful number, since it uses less digits than its factorization.

72205087216 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4512817959 (or 4512817953 counting only the distinct ones).

The product of its (nonzero) digits is 94080, while the sum is 40.

The spelling of 72205087216 in words is "seventy-two billion, two hundred five million, eighty-seven thousand, two hundred sixteen".