16128817277 has 16 divisors (see below), whose sum is σ = 16894026240. Its totient is φ = 15378394752.

The previous prime is 16128817207. The next prime is 16128817357. The reversal of 16128817277 is 77271882161.

It is a cyclic number.

It is not a de Polignac number, because 16128817277 - 2¹⁴ = 16128800893 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (16128817207) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1088873 + ... + 1103585.

It is an arithmetic number, because the mean of its divisors is an integer number (1055876640).

Almost surely, 2^16128817277 is an apocalyptic number.

It is an amenable number.

16128817277 is a deficient number, since it is larger than the sum of its proper divisors (765208963).

16128817277 is a wasteful number, since it uses less digits than its factorization.

16128817277 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15212.

The product of its digits is 526848, while the sum is 50.

The spelling of 16128817277 in words is "sixteen billion, one hundred twenty-eight million, eight hundred seventeen thousand, two hundred seventy-seven".