2661345652 has 12 divisors (see below), whose sum is σ = 5322691360. Its totient is φ = 1140576696.

The previous prime is 2661345647. The next prime is 2661345667. The reversal of 2661345652 is 2565431662.

It is a happy number.

2661345652 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

2661345652 is an admirable number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 47524002 + ... + 47524057.

Almost surely, 2^2661345652 is an apocalyptic number.

It is an amenable number.

2661345652 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

2661345652 is a wasteful number, since it uses less digits than its factorization.

2661345652 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 95048070 (or 95048068 counting only the distinct ones).

The product of its digits is 259200, while the sum is 40.

The square root of 2661345652 is about 51588.2317200348. The cubic root of 2661345652 is about 1385.7995881654.

The spelling of 2661345652 in words is "two billion, six hundred sixty-one million, three hundred forty-five thousand, six hundred fifty-two".