2661323252 has 12 divisors (see below), whose sum is σ = 5322646560. Its totient is φ = 1140567096.

The previous prime is 2661323239. The next prime is 2661323267. The reversal of 2661323252 is 2523231662.

2661323252 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, 47523602 + ... + 47523657.

It is an arithmetic number, because the mean of its divisors is an integer number (443553880).

Almost surely, 2^2661323252 is an apocalyptic number.

It is an amenable number.

2661323252 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.

2661323252 is a wasteful number, since it uses less digits than its factorization.

2661323252 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 95047270 (or 95047268 counting only the distinct ones).

The product of its digits is 25920, while the sum is 32.

The square root of 2661323252 is about 51588.0146158001. The cubic root of 2661323252 is about 1385.7957001577.

The spelling of 2661323252 in words is "two billion, six hundred sixty-one million, three hundred twenty-three thousand, two hundred fifty-two".