16442039941 has 2 divisors, whose sum is σ = 16442039942. Its totient is φ = 16442039940.

The previous prime is 16442039921. The next prime is 16442039953. The reversal of 16442039941 is 14993024461.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 10594379041 + 5847660900 = 102929^2 + 76470^2 .

It is a cyclic number.

It is not a de Polignac number, because 16442039941 - 2²⁹ = 15905169029 is a prime.

It is a super-3 number, since 3×16442039941³ (a number of 32 digits) contains 333 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (16442039921) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 8221019970 + 8221019971.

It is an arithmetic number, because the mean of its divisors is an integer number (8221019971).

Almost surely, 2^16442039941 is an apocalyptic number.

It is an amenable number.

16442039941 is a deficient number, since it is larger than the sum of its proper divisors (1).

16442039941 is an equidigital number, since it uses as much as digits as its factorization.

16442039941 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 186624, while the sum is 43.

The spelling of 16442039941 in words is "sixteen billion, four hundred forty-two million, thirty-nine thousand, nine hundred forty-one".