2660943924 has 18 divisors (see below), whose sum is σ = 6726275010. Its totient is φ = 886981296.

The previous prime is 2660943907. The next prime is 2660943949. The reversal of 2660943924 is 4293490662.

2660943924 is a `hidden beast` number, since 2 + 6 + 609 + 4 + 39 + 2 + 4 = 666.

It can be written as a sum of positive squares in only one way, i.e., 2599164324 + 61779600 = 50982^2 + 7860^2 .

It is a tau number, because it is divible by the number of its divisors (18).

It is a Smith number, since the sum of its digits (45) coincides with the sum of the digits of its prime factors.

It is a self number, because there is not a number n which added to its sum of digits gives 2660943924.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 36957519 + ... + 36957590.

It is an arithmetic number, because the mean of its divisors is an integer number (373681945).

Almost surely, 2^2660943924 is an apocalyptic number.

It is an amenable number.

2660943924 is an abundant number, since it is smaller than the sum of its proper divisors (4065331086).

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

2660943924 is a wasteful number, since it uses less digits than its factorization.

2660943924 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 73915119 (or 73915114 counting only the distinct ones).

The product of its (nonzero) digits is 559872, while the sum is 45.

The square root of 2660943924 is about 51584.3379719077. The cubic root of 2660943924 is about 1385.7298562098.

The spelling of 2660943924 in words is "two billion, six hundred sixty million, nine hundred forty-three thousand, nine hundred twenty-four".