16554471075697 has 8 divisors (see below), whose sum is σ = 17002408793832. Its totient is φ = 16106560704000.

The previous prime is 16554471075683. The next prime is 16554471075767. The reversal of 16554471075697 is 79657017445561.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 8278947363856 + 8275523711841 = 2877316^2 + 2876721^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 16554471075697 - 2¹⁵ = 16554471042929 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (16554471075617) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5606554 + ... + 8033827.

It is an arithmetic number, because the mean of its divisors is an integer number (2125301099229).

Almost surely, 2^{16554471075697} is an apocalyptic number.

It is an amenable number.

16554471075697 is a deficient number, since it is larger than the sum of its proper divisors (447937718135).

16554471075697 is a wasteful number, since it uses less digits than its factorization.

16554471075697 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13673219.

The product of its (nonzero) digits is 222264000, while the sum is 67.

The spelling of 16554471075697 in words is "sixteen trillion, five hundred fifty-four billion, four hundred seventy-one million, seventy-five thousand, six hundred ninety-seven".