162216799 has 2 divisors, whose sum is σ = 162216800. Its totient is φ = 162216798.

The previous prime is 162216797. The next prime is 162216809. The reversal of 162216799 is 997612261.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 162216799 - 2¹ = 162216797 is a prime.

Together with 162216797, it forms a pair of twin primes.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (162216797) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 81108399 + 81108400.

It is an arithmetic number, because the mean of its divisors is an integer number (81108400).

Almost surely, 2^162216799 is an apocalyptic number.

162216799 is a deficient number, since it is larger than the sum of its proper divisors (1).

162216799 is an equidigital number, since it uses as much as digits as its factorization.

162216799 is an evil number, because the sum of its binary digits is even.

The product of its digits is 81648, while the sum is 43.

The square root of 162216799 is about 12736.4358829305. The cubic root of 162216799 is about 545.3792484184.

The spelling of 162216799 in words is "one hundred sixty-two million, two hundred sixteen thousand, seven hundred ninety-nine".