16163223603556 has 24 divisors (see below), whose sum is σ = 28319581297280. Its totient is φ = 8071916628672.

The previous prime is 16163223603529. The next prime is 16163223603563. The reversal of 16163223603556 is 65530632236161.

16163223603556 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×16163223603556² (a number of 27 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 33309976 + ... + 33791728.

Almost surely, 2^{16163223603556} is an apocalyptic number.

It is an amenable number.

16163223603556 is a deficient number, since it is larger than the sum of its proper divisors (12156357693724).

16163223603556 is a wasteful number, since it uses less digits than its factorization.

16163223603556 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 491803 (or 491801 counting only the distinct ones).

The product of its (nonzero) digits is 3499200, while the sum is 49.

The spelling of 16163223603556 in words is "sixteen trillion, one hundred sixty-three billion, two hundred twenty-three million, six hundred three thousand, five hundred fifty-six".