2660345852 has 12 divisors (see below), whose sum is σ = 4660042296. Its totient is φ = 1328905200.

The previous prime is 2660345851. The next prime is 2660345923. The reversal of 2660345852 is 2585430662.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2660345851) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 312203 + ... + 320610.

It is an arithmetic number, because the mean of its divisors is an integer number (388336858).

Almost surely, 2^2660345852 is an apocalyptic number.

It is an amenable number.

2660345852 is a deficient number, since it is larger than the sum of its proper divisors (1999696444).

2660345852 is a wasteful number, since it uses less digits than its factorization.

2660345852 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 633868 (or 633866 counting only the distinct ones).

The product of its (nonzero) digits is 345600, while the sum is 41.

The square root of 2660345852 is about 51578.5406152598. The cubic root of 2660345852 is about 1385.6260298548.

The spelling of 2660345852 in words is "two billion, six hundred sixty million, three hundred forty-five thousand, eight hundred fifty-two".