2645539120 has 80 divisors (see below), whose sum is σ = 7335244800. Its totient is φ = 867601152.

The previous prime is 2645539111. The next prime is 2645539121. The reversal of 2645539120 is 219355462.

It is a tau number, because it is divible by the number of its divisors (80).

It is a self number, because there is not a number n which added to its sum of digits gives 2645539120.

It is not an unprimeable number, because it can be changed into a prime (2645539121) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 89820 + ... + 115579.

It is an arithmetic number, because the mean of its divisors is an integer number (91690560).

Almost surely, 2^2645539120 is an apocalyptic number.

2645539120 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2645539120 is an abundant number, since it is smaller than the sum of its proper divisors (4689705680).

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

2645539120 is a wasteful number, since it uses less digits than its factorization.

2645539120 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 205442 (or 205436 counting only the distinct ones).

The product of its (nonzero) digits is 64800, while the sum is 37.

The square root of 2645539120 is about 51434.8045587810. The cubic root of 2645539120 is about 1383.0505784241.

The spelling of 2645539120 in words is "two billion, six hundred forty-five million, five hundred thirty-nine thousand, one hundred twenty".