16044697925 has 6 divisors (see below), whose sum is σ = 19895425458. Its totient is φ = 12835758320.

The previous prime is 16044697919. The next prime is 16044697927. The reversal of 16044697925 is 52979644061.

It can be written as a sum of positive squares in 3 ways, for example, as 39664804 + 16005033121 = 6298^2 + 126511^2 .

It is not a de Polignac number, because 16044697925 - 2⁴ = 16044697909 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (16044697927) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 320893934 + ... + 320893983.

It is an arithmetic number, because the mean of its divisors is an integer number (3315904243).

Almost surely, 2^16044697925 is an apocalyptic number.

It is an amenable number.

16044697925 is a deficient number, since it is larger than the sum of its proper divisors (3850727533).

16044697925 is an equidigital number, since it uses as much as digits as its factorization.

16044697925 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 641787927 (or 641787922 counting only the distinct ones).

The product of its (nonzero) digits is 3265920, while the sum is 53.

The spelling of 16044697925 in words is "sixteen billion, forty-four million, six hundred ninety-seven thousand, nine hundred twenty-five".