2242321666 has 16 divisors (see below), whose sum is σ = 3624324984. Its totient is φ = 1034313984.

The previous prime is 2242321643. The next prime is 2242321691. The reversal of 2242321666 is 6661232422.

It can be written as a sum of positive squares in 4 ways, for example, as 1956204441 + 286117225 = 44229^2 + 16915^2 .

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 21936 + ... + 70468.

Almost surely, 2^2242321666 is an apocalyptic number.

2242321666 is a gapful number since it is divisible by the number (26) formed by its first and last digit.

2242321666 is a deficient number, since it is larger than the sum of its proper divisors (1382003318).

2242321666 is a wasteful number, since it uses less digits than its factorization.

2242321666 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 50325.

The product of its digits is 41472, while the sum is 34.

The square root of 2242321666 is about 47353.1589864921. The cubic root of 2242321666 is about 1308.8784110524.

The spelling of 2242321666 in words is "two billion, two hundred forty-two million, three hundred twenty-one thousand, six hundred sixty-six".