2661280204 has 24 divisors (see below), whose sum is σ = 5217943248. Its totient is φ = 1176978240.

The previous prime is 2661280199. The next prime is 2661280213. The reversal of 2661280204 is 4020821662.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 815719 + ... + 818974.

It is an arithmetic number, because the mean of its divisors is an integer number (217414302).

Almost surely, 2^2661280204 is an apocalyptic number.

It is an amenable number.

2661280204 is a deficient number, since it is larger than the sum of its proper divisors (2556663044).

2661280204 is a wasteful number, since it uses less digits than its factorization.

2661280204 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1634745 (or 1634743 counting only the distinct ones).

The product of its (nonzero) digits is 9216, while the sum is 31.

The square root of 2661280204 is about 51587.5973854181. The cubic root of 2661280204 is about 1385.7882281786.

The spelling of 2661280204 in words is "two billion, six hundred sixty-one million, two hundred eighty thousand, two hundred four".