16434339777 has 8 divisors (see below), whose sum is σ = 24347170080. Its totient is φ = 10956226500.

The previous prime is 16434339749. The next prime is 16434339787. The reversal of 16434339777 is 77793343461.

16434339777 is a `hidden beast` number, since 16 + 43 + 433 + 97 + 77 = 666.

16434339777 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 16434339777 - 2⁸ = 16434339521 is a prime.

It is not an unprimeable number, because it can be changed into a prime (16434339787) 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 7 ways as a sum of consecutive naturals, for example, 304339599 + ... + 304339652.

It is an arithmetic number, because the mean of its divisors is an integer number (3043396260).

Almost surely, 2^16434339777 is an apocalyptic number.

It is an amenable number.

16434339777 is a deficient number, since it is larger than the sum of its proper divisors (7912830303).

16434339777 is an equidigital number, since it uses as much as digits as its factorization.

16434339777 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 608679260 (or 608679254 counting only the distinct ones).

The product of its digits is 8001504, while the sum is 54.

The spelling of 16434339777 in words is "sixteen billion, four hundred thirty-four million, three hundred thirty-nine thousand, seven hundred seventy-seven".