16334118025 has 9 divisors (see below), whose sum is σ = 20255098773. Its totient is φ = 13066783200.

The previous prime is 16334118011. The next prime is 16334118029. The reversal of 16334118025 is 52081143361.

The square root of 16334118025 is 127805.

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 658076409 + 15676041616 = 25653^2 + 125204^2 .

It is not a de Polignac number, because 16334118025 - 2¹⁷ = 16333986953 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (16334118029) by changing a digit.

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 8 ways as a sum of consecutive naturals, for example, 626245 + ... + 651805.

Almost surely, 2^16334118025 is an apocalyptic number.

16334118025 is the 127805-th square number.

16334118025 is the 63903-rd centered octagonal number.

It is an amenable number.

16334118025 is a deficient number, since it is larger than the sum of its proper divisors (3920980748).

16334118025 is an frugal number, since it uses more digits than its factorization.

16334118025 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 51132 (or 25566 counting only the distinct ones).

The product of its (nonzero) digits is 17280, while the sum is 34.

The spelling of 16334118025 in words is "sixteen billion, three hundred thirty-four million, one hundred eighteen thousand, twenty-five".