16522644242651 has 8 divisors (see below), whose sum is σ = 17270900543904. Its totient is φ = 15776877980160.

The previous prime is 16522644242647. The next prime is 16522644242669. The reversal of 16522644242651 is 15624244622561.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 16522644242651 - 2² = 16522644242647 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 16522644242651.

It is not an unprimeable number, because it can be changed into a prime (16522644242641) 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, 622496120 + ... + 622522661.

It is an arithmetic number, because the mean of its divisors is an integer number (2158862567988).

Almost surely, 2^{16522644242651} is an apocalyptic number.

16522644242651 is a deficient number, since it is larger than the sum of its proper divisors (748256301253).

16522644242651 is a wasteful number, since it uses less digits than its factorization.

16522644242651 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1245019381.

The product of its digits is 5529600, while the sum is 50.

The spelling of 16522644242651 in words is "sixteen trillion, five hundred twenty-two billion, six hundred forty-four million, two hundred forty-two thousand, six hundred fifty-one".