2660465250 has 80 divisors (see below), whose sum is σ = 7439899896. Its totient is φ = 709452000.

The previous prime is 2660465237. The next prime is 2660465251. The reversal of 2660465250 is 525640662.

2660465250 is a `hidden beast` number, since 26 + 604 + 6 + 5 + 25 + 0 = 666.

It can be written as a sum of positive squares in 4 ways, for example, as 1440430209 + 1220035041 = 37953^2 + 34929^2 .

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (2660465251) by changing a digit.

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 39 ways as a sum of consecutive naturals, for example, 45441 + ... + 85940.

Almost surely, 2^2660465250 is an apocalyptic number.

2660465250 is an abundant number, since it is smaller than the sum of its proper divisors (4779434646).

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

2660465250 is a wasteful number, since it uses less digits than its factorization.

2660465250 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 131410 (or 131391 counting only the distinct ones).

The product of its (nonzero) digits is 86400, while the sum is 36.

The square root of 2660465250 is about 51579.6980409928. The cubic root of 2660465250 is about 1385.6467588014.

The spelling of 2660465250 in words is "two billion, six hundred sixty million, four hundred sixty-five thousand, two hundred fifty".