16039264059025 has 27 divisors (see below), whose sum is σ = 20145616692411. Its totient is φ = 12667738789680.

The previous prime is 16039264058981. The next prime is 16039264059041. The reversal of 16039264059025 is 52095046293061.

The square root of 16039264059025 is 4004905.

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., 5774135061249 + 10265128997776 = 2402943^2 + 3203924^2 .

It is a de Polignac number, because none of the positive numbers 2^k-16039264059025 is a prime.

It is a super-2 number, since 2×16039264059025² (a number of 27 digits) contains 22 as substring.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 26 ways as a sum of consecutive naturals, for example, 1581932406 + ... + 1581942544.

Almost surely, 2^{16039264059025} is an apocalyptic number.

16039264059025 is the 4004905-th square number.

16039264059025 is the 2002453-rd centered octagonal number.

It is an amenable number.

16039264059025 is a deficient number, since it is larger than the sum of its proper divisors (4106352633386).

16039264059025 is an frugal number, since it uses more digits than its factorization.

16039264059025 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20446 (or 10223 counting only the distinct ones).

The product of its (nonzero) digits is 3499200, while the sum is 52.

The spelling of 16039264059025 in words is "sixteen trillion, thirty-nine billion, two hundred sixty-four million, fifty-nine thousand, twenty-five".