2043655266 has 32 divisors (see below), whose sum is σ = 4143513600. Its totient is φ = 671870160.

The previous prime is 2043655241. The next prime is 2043655277. The reversal of 2043655266 is 6625563402.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 604561 + ... + 607931.

It is an arithmetic number, because the mean of its divisors is an integer number (129484800).

Almost surely, 2^2043655266 is an apocalyptic number.

2043655266 is an abundant number, since it is smaller than the sum of its proper divisors (2099858334).

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

2043655266 is a wasteful number, since it uses less digits than its factorization.

2043655266 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4734.

The product of its (nonzero) digits is 259200, while the sum is 39.

The square root of 2043655266 is about 45206.8055274867. The cubic root of 2043655266 is about 1269.0221803532.

The spelling of 2043655266 in words is "two billion, forty-three million, six hundred fifty-five thousand, two hundred sixty-six".