16521927244 has 6 divisors (see below), whose sum is σ = 28913372684. Its totient is φ = 8260963620.

The previous prime is 16521927239. The next prime is 16521927277. The reversal of 16521927244 is 44272912561.

It is a self number, because there is not a number n which added to its sum of digits gives 16521927244.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2065240902 + ... + 2065240909.

Almost surely, 2^16521927244 is an apocalyptic number.

It is an amenable number.

16521927244 is a deficient number, since it is larger than the sum of its proper divisors (12391445440).

16521927244 is a wasteful number, since it uses less digits than its factorization.

16521927244 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4130481815 (or 4130481813 counting only the distinct ones).

The product of its digits is 241920, while the sum is 43.

The spelling of 16521927244 in words is "sixteen billion, five hundred twenty-one million, nine hundred twenty-seven thousand, two hundred forty-four".