16005055477 has 2 divisors, whose sum is σ = 16005055478. Its totient is φ = 16005055476.

The previous prime is 16005055453. The next prime is 16005055513. The reversal of 16005055477 is 77455050061.

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., 10500305841 + 5504749636 = 102471^2 + 74194^2 .

It is an emirp because it is prime and its reverse (77455050061) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 16005055477 - 2²³ = 15996666869 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (16005055777) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 8002527738 + 8002527739.

It is an arithmetic number, because the mean of its divisors is an integer number (8002527739).

Almost surely, 2^16005055477 is an apocalyptic number.

It is an amenable number.

16005055477 is a deficient number, since it is larger than the sum of its proper divisors (1).

16005055477 is an equidigital number, since it uses as much as digits as its factorization.

16005055477 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 147000, while the sum is 40.

The spelling of 16005055477 in words is "sixteen billion, five million, fifty-five thousand, four hundred seventy-seven".