16531631726127 has 16 divisors (see below), whose sum is σ = 25191635024640. Its totient is φ = 9446430267072.

The previous prime is 16531631726107. The next prime is 16531631726191. The reversal of 16531631726127 is 72162713613561.

It is not a de Polignac number, because 16531631726127 - 2¹⁶ = 16531631660591 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 16531631726127.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (16531631726107) 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, 8077377 + ... + 9915002.

It is an arithmetic number, because the mean of its divisors is an integer number (1574477189040).

Almost surely, 2^{16531631726127} is an apocalyptic number.

16531631726127 is a deficient number, since it is larger than the sum of its proper divisors (8660003298513).

16531631726127 is a wasteful number, since it uses less digits than its factorization.

16531631726127 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18036142.

The product of its digits is 1905120, while the sum is 51.

The spelling of 16531631726127 in words is "sixteen trillion, five hundred thirty-one billion, six hundred thirty-one million, seven hundred twenty-six thousand, one hundred twenty-seven".