2207731066 has 4 divisors (see below), whose sum is σ = 3311596602. Its totient is φ = 1103865532.

The previous prime is 2207731051. The next prime is 2207731081. The reversal of 2207731066 is 6601377022.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is an interprime number because it is at equal distance from previous prime (2207731051) and next prime (2207731081).

It can be written as a sum of positive squares in only one way, i.e., 2081640625 + 126090441 = 45625^2 + 11229^2 .

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 551932765 + ... + 551932768.

Almost surely, 2^2207731066 is an apocalyptic number.

2207731066 is a deficient number, since it is larger than the sum of its proper divisors (1103865536).

2207731066 is a wasteful number, since it uses less digits than its factorization.

2207731066 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1103865535.

The product of its (nonzero) digits is 21168, while the sum is 34.

The square root of 2207731066 is about 46986.4987629425. The cubic root of 2207731066 is about 1302.1131442972.

The spelling of 2207731066 in words is "two billion, two hundred seven million, seven hundred thirty-one thousand, sixty-six".