16433432441 has 2 divisors, whose sum is σ = 16433432442. Its totient is φ = 16433432440.

The previous prime is 16433432423. The next prime is 16433432461. The reversal of 16433432441 is 14423433461.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 15896166400 + 537266041 = 126080^2 + 23179^2 .

It is a cyclic number.

It is not a de Polignac number, because 16433432441 - 2¹⁸ = 16433170297 is a prime.

It is a super-2 number, since 2×16433432441² (a number of 21 digits) contains 22 as substring.

It is a Sophie Germain prime.

It is a Curzon number.

It is not a weakly prime, because it can be changed into another prime (16433432401) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 8216716220 + 8216716221.

It is an arithmetic number, because the mean of its divisors is an integer number (8216716221).

Almost surely, 2^16433432441 is an apocalyptic number.

It is an amenable number.

16433432441 is a deficient number, since it is larger than the sum of its proper divisors (1).

16433432441 is an equidigital number, since it uses as much as digits as its factorization.

16433432441 is an evil number, because the sum of its binary digits is even.

The product of its digits is 82944, while the sum is 35.

The spelling of 16433432441 in words is "sixteen billion, four hundred thirty-three million, four hundred thirty-two thousand, four hundred forty-one".