165190622489 has 2 divisors, whose sum is σ = 165190622490. Its totient is φ = 165190622488.

The previous prime is 165190622459. The next prime is 165190622507. The reversal of 165190622489 is 984226091561.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 94689752089 + 70500870400 = 307717^2 + 265520^2 .

It is a cyclic number.

It is not a de Polignac number, because 165190622489 - 2³⁶ = 96471145753 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 165190622489.

It is not a weakly prime, because it can be changed into another prime (165190622459) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 82595311244 + 82595311245.

It is an arithmetic number, because the mean of its divisors is an integer number (82595311245).

Almost surely, 2^165190622489 is an apocalyptic number.

It is an amenable number.

165190622489 is a deficient number, since it is larger than the sum of its proper divisors (1).

165190622489 is an equidigital number, since it uses as much as digits as its factorization.

165190622489 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1866240, while the sum is 53.

The spelling of 165190622489 in words is "one hundred sixty-five billion, one hundred ninety million, six hundred twenty-two thousand, four hundred eighty-nine".