2241278066 has 4 divisors (see below), whose sum is σ = 3361917102. Its totient is φ = 1120639032.

The previous prime is 2241278041. The next prime is 2241278077. The reversal of 2241278066 is 6608721422.

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

It can be written as a sum of positive squares in only one way, i.e., 1934152441 + 307125625 = 43979^2 + 17525^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 560319515 + ... + 560319518.

Almost surely, 2^2241278066 is an apocalyptic number.

2241278066 is a deficient number, since it is larger than the sum of its proper divisors (1120639036).

2241278066 is a wasteful number, since it uses less digits than its factorization.

2241278066 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1120639035.

The product of its (nonzero) digits is 64512, while the sum is 38.

The square root of 2241278066 is about 47342.1383758698. The cubic root of 2241278066 is about 1308.6753243003.

Adding to 2241278066 its reverse (6608721422), we get a palindrome (8849999488).

The spelling of 2241278066 in words is "two billion, two hundred forty-one million, two hundred seventy-eight thousand, sixty-six".