16436044169 has 2 divisors, whose sum is σ = 16436044170. Its totient is φ = 16436044168.

The previous prime is 16436044127. The next prime is 16436044181. The reversal of 16436044169 is 96144063461.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 13000560400 + 3435483769 = 114020^2 + 58613^2 .

It is a cyclic number.

It is not a de Polignac number, because 16436044169 - 2¹² = 16436040073 is a prime.

It is a super-2 number, since 2×16436044169² (a number of 21 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (16436244169) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 8218022084 + 8218022085.

It is an arithmetic number, because the mean of its divisors is an integer number (8218022085).

Almost surely, 2^16436044169 is an apocalyptic number.

It is an amenable number.

16436044169 is a deficient number, since it is larger than the sum of its proper divisors (1).

16436044169 is an equidigital number, since it uses as much as digits as its factorization.

16436044169 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 373248, while the sum is 44.

The spelling of 16436044169 in words is "sixteen billion, four hundred thirty-six million, forty-four thousand, one hundred sixty-nine".