16531053851433 has 16 divisors (see below), whose sum is σ = 24192685622016. Its totient is φ = 9957355356240.

The previous prime is 16531053851407. The next prime is 16531053851443. The reversal of 16531053851433 is 33415835013561.

It is a happy number.

It is not a de Polignac number, because 16531053851433 - 2²⁴ = 16531037074217 is a prime.

It is not an unprimeable number, because it can be changed into a prime (16531053851443) 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, 1536623535 + ... + 1536634292.

It is an arithmetic number, because the mean of its divisors is an integer number (1512042851376).

Almost surely, 2^{16531053851433} is an apocalyptic number.

It is an amenable number.

16531053851433 is a deficient number, since it is larger than the sum of its proper divisors (7661631770583).

16531053851433 is a wasteful number, since it uses less digits than its factorization.

16531053851433 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3073258004.

The product of its (nonzero) digits is 1944000, while the sum is 48.

Adding to 16531053851433 its reverse (33415835013561), we get a palindrome (49946888864994).

The spelling of 16531053851433 in words is "sixteen trillion, five hundred thirty-one billion, fifty-three million, eight hundred fifty-one thousand, four hundred thirty-three".