2605642160 has 40 divisors (see below), whose sum is σ = 6608858256. Its totient is φ = 947505920.

The previous prime is 2605642133. The next prime is 2605642181. The reversal of 2605642160 is 612465062.

It is a tau number, because it is divible by the number of its divisors (40).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1479599 + ... + 1481358.

Almost surely, 2^2605642160 is an apocalyptic number.

2605642160 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2605642160 is an abundant number, since it is smaller than the sum of its proper divisors (4003216096).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

2605642160 is a wasteful number, since it uses less digits than its factorization.

2605642160 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2960981 (or 2960975 counting only the distinct ones).

The product of its (nonzero) digits is 17280, while the sum is 32.

The square root of 2605642160 is about 51045.4910839341. The cubic root of 2605642160 is about 1376.0628098019.

The spelling of 2605642160 in words is "two billion, six hundred five million, six hundred forty-two thousand, one hundred sixty".