1199666666 has 32 divisors (see below), whose sum is σ = 2006830080. Its totient is φ = 533286000.

The previous prime is 1199666653. The next prime is 1199666701. The reversal of 1199666666 is 6666669911.

1199666666 is a modest number, since divided by 66666 gives 11996 as remainder.

It is a zygodrome in base 10.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 182741 + ... + 189191.

It is an arithmetic number, because the mean of its divisors is an integer number (62713440).

Almost surely, 2^1199666666 is an apocalyptic number.

1199666666 is a deficient number, since it is larger than the sum of its proper divisors (807163414).

1199666666 is a wasteful number, since it uses less digits than its factorization.

1199666666 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6650.

The product of its digits is 3779136, while the sum is 56.

The square root of 1199666666 is about 34636.2045553493. The cubic root of 1199666666 is about 1062.5601655618.

The spelling of 1199666666 in words is "one billion, one hundred ninety-nine million, six hundred sixty-six thousand, six hundred sixty-six".