2660464260 has 36 divisors (see below), whose sum is σ = 8070075468. Its totient is φ = 709457088.

The previous prime is 2660464229. The next prime is 2660464271. The reversal of 2660464260 is 624640662.

2660464260 is a `hidden beast` number, since 2 + 6 + 6 + 0 + 4 + 642 + 6 + 0 = 666.

2660464260 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 2 ways, for example, as 2009908224 + 650556036 = 44832^2 + 25506^2 .

It is a tau number, because it is divible by the number of its divisors (36).

It is a Harshad number since it is a multiple of its sum of digits (36).

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, 7389999 + ... + 7390358.

It is an arithmetic number, because the mean of its divisors is an integer number (224168763).

Almost surely, 2^2660464260 is an apocalyptic number.

2660464260 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2660464260 is an abundant number, since it is smaller than the sum of its proper divisors (5409611208).

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

2660464260 is a wasteful number, since it uses less digits than its factorization.

2660464260 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14780372 (or 14780367 counting only the distinct ones).

The product of its (nonzero) digits is 82944, while the sum is 36.

The square root of 2660464260 is about 51579.6884441928. The cubic root of 2660464260 is about 1385.6465869279.

The spelling of 2660464260 in words is "two billion, six hundred sixty million, four hundred sixty-four thousand, two hundred sixty".