16531672028255 has 8 divisors (see below), whose sum is σ = 19838028620400. Its totient is φ = 13225322831616.

The previous prime is 16531672028251. The next prime is 16531672028279. The reversal of 16531672028255 is 55282027613561.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 16531672028255 - 2² = 16531672028251 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 16531672028197 and 16531672028206.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (16531672028251) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 6479276 + ... + 8662814.

It is an arithmetic number, because the mean of its divisors is an integer number (2479753577550).

Almost surely, 2^{16531672028255} is an apocalyptic number.

16531672028255 is a deficient number, since it is larger than the sum of its proper divisors (3306356592145).

16531672028255 is a wasteful number, since it uses less digits than its factorization.

16531672028255 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3697753.

The product of its (nonzero) digits is 6048000, while the sum is 53.

The spelling of 16531672028255 in words is "sixteen trillion, five hundred thirty-one billion, six hundred seventy-two million, twenty-eight thousand, two hundred fifty-five".