16546447741657 has 16 divisors (see below), whose sum is σ = 16730774349520. Its totient is φ = 16362406674432.

The previous prime is 16546447741651. The next prime is 16546447741679. The reversal of 16546447741657 is 75614774464561.

It can be written as a sum of positive squares in 8 ways, for example, as 7486221321216 + 9060226420441 = 2736096^2 + 3010021^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-16546447741657 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 16546447741592 and 16546447741601.

It is not an unprimeable number, because it can be changed into a prime (16546447741651) 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, 849004969 + ... + 849024457.

It is an arithmetic number, because the mean of its divisors is an integer number (1045673396845).

Almost surely, 2^{16546447741657} is an apocalyptic number.

It is an amenable number.

16546447741657 is a deficient number, since it is larger than the sum of its proper divisors (184326607863).

16546447741657 is a wasteful number, since it uses less digits than its factorization.

16546447741657 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 26332.

The product of its digits is 474163200, while the sum is 67.

The spelling of 16546447741657 in words is "sixteen trillion, five hundred forty-six billion, four hundred forty-seven million, seven hundred forty-one thousand, six hundred fifty-seven".