16660254536541 has 72 divisors (see below), whose sum is σ = 30241634364032. Its totient is φ = 8651397585600.

The previous prime is 16660254536509. The next prime is 16660254536587. The reversal of 16660254536541 is 14563545206661.

It is not a de Polignac number, because 16660254536541 - 2⁵ = 16660254536509 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (16660254536441) 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 71 ways as a sum of consecutive naturals, for example, 19765251 + ... + 20590911.

Almost surely, 2^{16660254536541} is an apocalyptic number.

16660254536541 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

16660254536541 is a deficient number, since it is larger than the sum of its proper divisors (13581379827491).

16660254536541 is a wasteful number, since it uses less digits than its factorization.

16660254536541 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 828343 (or 828329 counting only the distinct ones).

The product of its (nonzero) digits is 15552000, while the sum is 54.

The spelling of 16660254536541 in words is "sixteen trillion, six hundred sixty billion, two hundred fifty-four million, five hundred thirty-six thousand, five hundred forty-one".