16040850128477 has 2 divisors, whose sum is σ = 16040850128478. Its totient is φ = 16040850128476.

The previous prime is 16040850128467. The next prime is 16040850128561. The reversal of 16040850128477 is 77482105804061.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 15957955657081 + 82894471396 = 3994741^2 + 287914^2 .

It is a cyclic number.

It is not a de Polignac number, because 16040850128477 - 2⁸ = 16040850128221 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (16040850128467) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 8020425064238 + 8020425064239.

It is an arithmetic number, because the mean of its divisors is an integer number (8020425064239).

Almost surely, 2^{16040850128477} is an apocalyptic number.

It is an amenable number.

16040850128477 is a deficient number, since it is larger than the sum of its proper divisors (1).

16040850128477 is an equidigital number, since it uses as much as digits as its factorization.

16040850128477 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 3010560, while the sum is 53.

The spelling of 16040850128477 in words is "sixteen trillion, forty billion, eight hundred fifty million, one hundred twenty-eight thousand, four hundred seventy-seven".