2604161045 has 24 divisors (see below), whose sum is σ = 3239936568. Its totient is φ = 2009335680.

The previous prime is 2604161017. The next prime is 2604161069. The reversal of 2604161045 is 5401614062.

It can be written as a sum of positive squares in 4 ways, for example, as 972566596 + 1631594449 = 31186^2 + 40393^2 .

It is not a de Polignac number, because 2604161045 - 2⁶ = 2604160981 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 2604160999 and 2604161017.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 1791539 + ... + 1792991.

It is an arithmetic number, because the mean of its divisors is an integer number (134997357).

Almost surely, 2^2604161045 is an apocalyptic number.

It is an amenable number.

2604161045 is a deficient number, since it is larger than the sum of its proper divisors (635775523).

2604161045 is a wasteful number, since it uses less digits than its factorization.

2604161045 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1893 (or 1862 counting only the distinct ones).

The product of its (nonzero) digits is 5760, while the sum is 29.

The square root of 2604161045 is about 51030.9812270938. The cubic root of 2604161045 is about 1375.8020303809.

The spelling of 2604161045 in words is "two billion, six hundred four million, one hundred sixty-one thousand, forty-five".