2288066261 has 16 divisors (see below), whose sum is σ = 2619993600. Its totient is φ = 1979459328.

The previous prime is 2288066257. The next prime is 2288066269. The reversal of 2288066261 is 1626608822.

It is not a de Polignac number, because 2288066261 - 2² = 2288066257 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2288066269) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 31160 + ... + 74478.

It is an arithmetic number, because the mean of its divisors is an integer number (163749600).

Almost surely, 2^2288066261 is an apocalyptic number.

It is an amenable number.

2288066261 is a deficient number, since it is larger than the sum of its proper divisors (331927339).

2288066261 is a wasteful number, since it uses less digits than its factorization.

2288066261 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 43588.

The product of its (nonzero) digits is 110592, while the sum is 41.

The square root of 2288066261 is about 47833.7355952888. The cubic root of 2288066261 is about 1317.7191751423.

The spelling of 2288066261 in words is "two billion, two hundred eighty-eight million, sixty-six thousand, two hundred sixty-one".