72022166510647 has 2 divisors, whose sum is σ = 72022166510648. Its totient is φ = 72022166510646.

The previous prime is 72022166510563. The next prime is 72022166510719. The reversal of 72022166510647 is 74601566122027.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-72022166510647 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 72022166510647.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (72022166519647) 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, 36011083255323 + 36011083255324.

It is an arithmetic number, because the mean of its divisors is an integer number (36011083255324).

Almost surely, 2^{72022166510647} is an apocalyptic number.

72022166510647 is a deficient number, since it is larger than the sum of its proper divisors (1).

72022166510647 is an equidigital number, since it uses as much as digits as its factorization.

72022166510647 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1693440, while the sum is 49.

The spelling of 72022166510647 in words is "seventy-two trillion, twenty-two billion, one hundred sixty-six million, five hundred ten thousand, six hundred forty-seven".