72416321037331 has 2 divisors, whose sum is σ = 72416321037332. Its totient is φ = 72416321037330.

The previous prime is 72416321037329. The next prime is 72416321037343. The reversal of 72416321037331 is 13373012361427.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 72416321037331 - 2¹ = 72416321037329 is a prime.

It is a super-2 number, since 2×72416321037331² (a number of 29 digits) contains 22 as substring.

Together with 72416321037329, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (72416321037391) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 36208160518665 + 36208160518666.

It is an arithmetic number, because the mean of its divisors is an integer number (36208160518666).

Almost surely, 2^{72416321037331} is an apocalyptic number.

72416321037331 is a deficient number, since it is larger than the sum of its proper divisors (1).

72416321037331 is an equidigital number, since it uses as much as digits as its factorization.

72416321037331 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 381024, while the sum is 43.

Adding to 72416321037331 its reverse (13373012361427), we get a palindrome (85789333398758).

The spelling of 72416321037331 in words is "seventy-two trillion, four hundred sixteen billion, three hundred twenty-one million, thirty-seven thousand, three hundred thirty-one".