16554427411117 has 32 divisors (see below), whose sum is σ = 17054243942400. Its totient is φ = 16061356289088.

The previous prime is 16554427411103. The next prime is 16554427411129. The reversal of 16554427411117 is 71111472445561.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-16554427411117 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (16554427411187) 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 31 ways as a sum of consecutive naturals, for example, 7597257934 + ... + 7597260112.

It is an arithmetic number, because the mean of its divisors is an integer number (532945123200).

Almost surely, 2^{16554427411117} is an apocalyptic number.

It is an amenable number.

16554427411117 is a deficient number, since it is larger than the sum of its proper divisors (499816531283).

16554427411117 is a wasteful number, since it uses less digits than its factorization.

16554427411117 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4585.

The product of its digits is 940800, while the sum is 49.

Adding to 16554427411117 its reverse (71111472445561), we get a palindrome (87665899856678).

The spelling of 16554427411117 in words is "sixteen trillion, five hundred fifty-four billion, four hundred twenty-seven million, four hundred eleven thousand, one hundred seventeen".