450164167109 has 2 divisors, whose sum is σ = 450164167110. Its totient is φ = 450164167108.

The previous prime is 450164167087. The next prime is 450164167127. The reversal of 450164167109 is 901761461054.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 448837022209 + 1327144900 = 669953^2 + 36430^2 .

It is a cyclic number.

It is not a de Polignac number, because 450164167109 - 2²⁰ = 450163118533 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 450164167109.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (450164167009) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 225082083554 + 225082083555.

It is an arithmetic number, because the mean of its divisors is an integer number (225082083555).

Almost surely, 2^450164167109 is an apocalyptic number.

It is an amenable number.

450164167109 is a deficient number, since it is larger than the sum of its proper divisors (1).

450164167109 is an equidigital number, since it uses as much as digits as its factorization.

450164167109 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 181440, while the sum is 44.

The spelling of 450164167109 in words is "four hundred fifty billion, one hundred sixty-four million, one hundred sixty-seven thousand, one hundred nine".