16610625603725 has 12 divisors (see below), whose sum is σ = 20809517769684. Its totient is φ = 13151505630720.

The previous prime is 16610625603709. The next prime is 16610625603791. The reversal of 16610625603725 is 52730652601661.

It is a happy number.

16610625603725 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 6 ways, for example, as 162839689156 + 16447785914569 = 403534^2 + 4055587^2 .

It is not a de Polignac number, because 16610625603725 - 2⁴ = 16610625603709 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 3424868834 + ... + 3424873683.

It is an arithmetic number, because the mean of its divisors is an integer number (1734126480807).

Almost surely, 2^{16610625603725} is an apocalyptic number.

It is an amenable number.

16610625603725 is a deficient number, since it is larger than the sum of its proper divisors (4198892165959).

16610625603725 is an equidigital number, since it uses as much as digits as its factorization.

16610625603725 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6849742624 (or 6849742619 counting only the distinct ones).

The product of its (nonzero) digits is 2721600, while the sum is 50.

The spelling of 16610625603725 in words is "sixteen trillion, six hundred ten billion, six hundred twenty-five million, six hundred three thousand, seven hundred twenty-five".