16911702025 has 27 divisors (see below), whose sum is σ = 21694657863. Its totient is φ = 13077325200.

The previous prime is 16911702013. The next prime is 16911702029. The reversal of 16911702025 is 52020711961.

The square root of 16911702025 is 130045.

It is a perfect power (a square), and thus also a powerful number.

It can be written as a sum of positive squares in only one way, i.e., 6088212729 + 10823489296 = 78027^2 + 104036^2 .

It is not a de Polignac number, because 16911702025 - 2¹³ = 16911693833 is a prime.

It is not an unprimeable number, because it can be changed into a prime (16911702029) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 26 ways as a sum of consecutive naturals, for example, 20156556 + ... + 20157394.

Almost surely, 2^16911702025 is an apocalyptic number.

16911702025 is the 130045-th square number.

16911702025 is the 65023-rd centered octagonal number.

It is an amenable number.

16911702025 is a deficient number, since it is larger than the sum of its proper divisors (4782955838).

16911702025 is an frugal number, since it uses more digits than its factorization.

16911702025 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1750 (or 875 counting only the distinct ones).

The product of its (nonzero) digits is 7560, while the sum is 34.

The spelling of 16911702025 in words is "sixteen billion, nine hundred eleven million, seven hundred two thousand, twenty-five".