16554475244131 has 4 divisors (see below), whose sum is σ = 18059427539064. Its totient is φ = 15049522949200.

The previous prime is 16554475244081. The next prime is 16554475244143. The reversal of 16554475244131 is 13144257445561.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 16554475244131 - 2¹⁵ = 16554475211363 is a prime.

It is a super-3 number, since 3×16554475244131³ (a number of 41 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (16554475242131) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 752476147450 + ... + 752476147471.

It is an arithmetic number, because the mean of its divisors is an integer number (4514856884766).

Almost surely, 2^{16554475244131} is an apocalyptic number.

16554475244131 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

16554475244131 is a deficient number, since it is larger than the sum of its proper divisors (1504952294933).

16554475244131 is a wasteful number, since it uses less digits than its factorization.

16554475244131 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1504952294932.

The product of its digits is 8064000, while the sum is 52.

The spelling of 16554475244131 in words is "sixteen trillion, five hundred fifty-four billion, four hundred seventy-five million, two hundred forty-four thousand, one hundred thirty-one".