165222455843 has 2 divisors, whose sum is σ = 165222455844. Its totient is φ = 165222455842.

The previous prime is 165222455819. The next prime is 165222455873. The reversal of 165222455843 is 348554222561.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 165222455843 - 2¹⁰ = 165222454819 is a prime.

It is not a weakly prime, because it can be changed into another prime (165222455873) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 82611227921 + 82611227922.

It is an arithmetic number, because the mean of its divisors is an integer number (82611227922).

Almost surely, 2^165222455843 is an apocalyptic number.

165222455843 is a deficient number, since it is larger than the sum of its proper divisors (1).

165222455843 is an equidigital number, since it uses as much as digits as its factorization.

165222455843 is an evil number, because the sum of its binary digits is even.

The product of its digits is 2304000, while the sum is 47.

The spelling of 165222455843 in words is "one hundred sixty-five billion, two hundred twenty-two million, four hundred fifty-five thousand, eight hundred forty-three".