2660543252 has 6 divisors (see below), whose sum is σ = 4655950698. Its totient is φ = 1330271624.

The previous prime is 2660543209. The next prime is 2660543269. The reversal of 2660543252 is 2523450662.

It can be written as a sum of positive squares in only one way, i.e., 2463533956 + 197009296 = 49634^2 + 14036^2 .

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 332567903 + ... + 332567910.

It is an arithmetic number, because the mean of its divisors is an integer number (775991783).

Almost surely, 2^2660543252 is an apocalyptic number.

It is an amenable number.

2660543252 is a deficient number, since it is larger than the sum of its proper divisors (1995407446).

2660543252 is a wasteful number, since it uses less digits than its factorization.

2660543252 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 665135817 (or 665135815 counting only the distinct ones).

The product of its (nonzero) digits is 86400, while the sum is 35.

The square root of 2660543252 is about 51580.4541662828. The cubic root of 2660543252 is about 1385.6603005635.

The spelling of 2660543252 in words is "two billion, six hundred sixty million, five hundred forty-three thousand, two hundred fifty-two".