16613563536542 has 16 divisors (see below), whose sum is σ = 30155711965920. Its totient is φ = 6701269325568.

The previous prime is 16613563536469. The next prime is 16613563536547. The reversal of 16613563536542 is 24563536531661.

16613563536542 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (16613563536547) 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, 34902444167 + ... + 34902444642.

It is an arithmetic number, because the mean of its divisors is an integer number (1884731997870).

Almost surely, 2^{16613563536542} is an apocalyptic number.

16613563536542 is a deficient number, since it is larger than the sum of its proper divisors (13542148429378).

16613563536542 is a wasteful number, since it uses less digits than its factorization.

16613563536542 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 69804888835.

The product of its digits is 34992000, while the sum is 56.

The spelling of 16613563536542 in words is "sixteen trillion, six hundred thirteen billion, five hundred sixty-three million, five hundred thirty-six thousand, five hundred forty-two".