16442095777 has 2 divisors, whose sum is σ = 16442095778. Its totient is φ = 16442095776.

The previous prime is 16442095763. The next prime is 16442095781. The reversal of 16442095777 is 77759024461.

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., 12632860816 + 3809234961 = 112396^2 + 61719^2 .

It is a cyclic number.

It is not a de Polignac number, because 16442095777 - 2¹¹ = 16442093729 is a prime.

It is a super-3 number, since 3×16442095777³ (a number of 32 digits) contains 333 as substring.

It is not a weakly prime, because it can be changed into another prime (16442099777) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 8221047888 + 8221047889.

It is an arithmetic number, because the mean of its divisors is an integer number (8221047889).

Almost surely, 2^16442095777 is an apocalyptic number.

It is an amenable number.

16442095777 is a deficient number, since it is larger than the sum of its proper divisors (1).

16442095777 is an equidigital number, since it uses as much as digits as its factorization.

16442095777 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 2963520, while the sum is 52.

The spelling of 16442095777 in words is "sixteen billion, four hundred forty-two million, ninety-five thousand, seven hundred seventy-seven".