16563072025 has 12 divisors (see below), whose sum is σ = 20628693072. Its totient is φ = 13192081040.

The previous prime is 16563072011. The next prime is 16563072049. The reversal of 16563072025 is 52027036561.

It is not a de Polignac number, because 16563072025 - 2⁷ = 16563071897 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1453627 + ... + 1464976.

It is an arithmetic number, because the mean of its divisors is an integer number (1719057756).

Almost surely, 2^16563072025 is an apocalyptic number.

It is an amenable number.

16563072025 is a deficient number, since it is larger than the sum of its proper divisors (4065621047).

16563072025 is a wasteful number, since it uses less digits than its factorization.

16563072025 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2918840 (or 2918835 counting only the distinct ones).

The product of its (nonzero) digits is 75600, while the sum is 37.

The spelling of 16563072025 in words is "sixteen billion, five hundred sixty-three million, seventy-two thousand, twenty-five".