162204992449 has 4 divisors (see below), whose sum is σ = 163877208964. Its totient is φ = 160532775936.

The previous prime is 162204992423. The next prime is 162204992459. The reversal of 162204992449 is 944299402261.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 32789966400 + 129415026049 = 181080^2 + 359743^2 .

It is a cyclic number.

It is not a de Polignac number, because 162204992449 - 2²¹ = 162202895297 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 162204992396 and 162204992405.

It is not an unprimeable number, because it can be changed into a prime (162204992459) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 836108112 + ... + 836108305.

It is an arithmetic number, because the mean of its divisors is an integer number (40969302241).

Almost surely, 2^162204992449 is an apocalyptic number.

It is an amenable number.

162204992449 is a deficient number, since it is larger than the sum of its proper divisors (1672216515).

162204992449 is an equidigital number, since it uses as much as digits as its factorization.

162204992449 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1672216514.

The product of its (nonzero) digits is 2239488, while the sum is 52.

The spelling of 162204992449 in words is "one hundred sixty-two billion, two hundred four million, nine hundred ninety-two thousand, four hundred forty-nine".