16525265656384 has 63 divisors (see below), whose sum is σ = 32932115382907. Its totient is φ = 8227558903808.

The previous prime is 16525265656373. The next prime is 16525265656397. The reversal of 16525265656384 is 48365656252561.

The square root of 16525265656384 is 4065128.

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

It can be written as a sum of positive squares in 4 ways, for example, as 4431563896384 + 12093701760000 = 2105128^2 + 3477600^2 .

It is a Harshad number since it is a multiple of its sum of digits (64).

It is a Duffinian number.

Its product of digits (311040000) is a multiple of the sum of its prime divisors (2160).

It is an unprimeable number.

It is a polite number, since it can be written in 8 ways as a sum of consecutive naturals, for example, 8748154512 + ... + 8748156400.

Almost surely, 2^{16525265656384} is an apocalyptic number.

16525265656384 is the 4065128-th square number.

It is an amenable number.

16525265656384 is a deficient number, since it is larger than the sum of its proper divisors (16406849726523).

16525265656384 is an frugal number, since it uses more digits than its factorization.

16525265656384 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4328 (or 2160 counting only the distinct ones).

The product of its digits is 311040000, while the sum is 64.

16525265656384 divided by its sum of digits (64) gives a square (258207275881 = 508141²).

The spelling of 16525265656384 in words is "sixteen trillion, five hundred twenty-five billion, two hundred sixty-five million, six hundred fifty-six thousand, three hundred eighty-four".