16431574536128 has 112 divisors (see below), whose sum is σ = 33992649799680. Its totient is φ = 7872041548800.

The previous prime is 16431574536127. The next prime is 16431574536149. The reversal of 16431574536128 is 82163547513461.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (16431574536127) 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 in 15 ways as a sum of consecutive naturals, for example, 114025850 + ... + 114169862.

Almost surely, 2^{16431574536128} is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 16431574536128, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (16996324899840).

16431574536128 is an abundant number, since it is smaller than the sum of its proper divisors (17561075263552).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

16431574536128 is a wasteful number, since it uses less digits than its factorization.

16431574536128 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 144626 (or 144616 counting only the distinct ones).

The product of its digits is 14515200, while the sum is 56.

The spelling of 16431574536128 in words is "sixteen trillion, four hundred thirty-one billion, five hundred seventy-four million, five hundred thirty-six thousand, one hundred twenty-eight".