16554471403133 has 2 divisors, whose sum is σ = 16554471403134. Its totient is φ = 16554471403132.

The previous prime is 16554471403097. The next prime is 16554471403199. The reversal of 16554471403133 is 33130417445561.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 15845072864569 + 709398538564 = 3980587^2 + 842258^2 .

It is a cyclic number.

It is not a de Polignac number, because 16554471403133 - 2¹⁶ = 16554471337597 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (16554471403433) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 8277235701566 + 8277235701567.

It is an arithmetic number, because the mean of its divisors is an integer number (8277235701567).

Almost surely, 2^{16554471403133} is an apocalyptic number.

It is an amenable number.

16554471403133 is a deficient number, since it is larger than the sum of its proper divisors (1).

16554471403133 is an equidigital number, since it uses as much as digits as its factorization.

16554471403133 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1814400, while the sum is 47.

Adding to 16554471403133 its reverse (33130417445561), we get a palindrome (49684888848694).

The spelling of 16554471403133 in words is "sixteen trillion, five hundred fifty-four billion, four hundred seventy-one million, four hundred three thousand, one hundred thirty-three".