16556074353605 has 16 divisors (see below), whose sum is σ = 19981097625600. Its totient is φ = 13169008090560.

The previous prime is 16556074353563. The next prime is 16556074353607. The reversal of 16556074353605 is 50635347065561.

It is not a de Polignac number, because 16556074353605 - 2²⁰ = 16556073305029 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (16556074353607) 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 15 ways as a sum of consecutive naturals, for example, 5061500 + ... + 7663610.

It is an arithmetic number, because the mean of its divisors is an integer number (1248818601600).

Almost surely, 2^{16556074353605} is an apocalyptic number.

It is an amenable number.

16556074353605 is a deficient number, since it is larger than the sum of its proper divisors (3425023271995).

16556074353605 is a wasteful number, since it uses less digits than its factorization.

16556074353605 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2609404.

The product of its (nonzero) digits is 34020000, while the sum is 56.

The spelling of 16556074353605 in words is "sixteen trillion, five hundred fifty-six billion, seventy-four million, three hundred fifty-three thousand, six hundred five".