162021223739 has 2 divisors, whose sum is σ = 162021223740. Its totient is φ = 162021223738.

The previous prime is 162021223729. The next prime is 162021223753. The reversal of 162021223739 is 937322120261.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-162021223739 is a prime.

It is not a weakly prime, because it can be changed into another prime (162021223729) 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, 81010611869 + 81010611870.

It is an arithmetic number, because the mean of its divisors is an integer number (81010611870).

Almost surely, 2^162021223739 is an apocalyptic number.

162021223739 is a deficient number, since it is larger than the sum of its proper divisors (1).

162021223739 is an equidigital number, since it uses as much as digits as its factorization.

162021223739 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 54432, while the sum is 38.

The spelling of 162021223739 in words is "one hundred sixty-two billion, twenty-one million, two hundred twenty-three thousand, seven hundred thirty-nine".