1143666722 has 16 divisors (see below), whose sum is σ = 1897815744. Its totient is φ = 512526000.

The previous prime is 1143666683. The next prime is 1143666737. The reversal of 1143666722 is 2276663411.

It is a happy number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 364529 + ... + 367652.

It is an arithmetic number, because the mean of its divisors is an integer number (118613484).

Almost surely, 2^1143666722 is an apocalyptic number.

1143666722 is a deficient number, since it is larger than the sum of its proper divisors (754149022).

1143666722 is a wasteful number, since it uses less digits than its factorization.

1143666722 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 732265.

The product of its digits is 72576, while the sum is 38.

The square root of 1143666722 is about 33818.1419063792. The cubic root of 1143666722 is about 1045.7627336768.

The spelling of 1143666722 in words is "one billion, one hundred forty-three million, six hundred sixty-six thousand, seven hundred twenty-two".