1166116664 has 8 divisors (see below), whose sum is σ = 2186468760. Its totient is φ = 583058328.

The previous prime is 1166116661. The next prime is 1166116691. The reversal of 1166116664 is 4666116611.

It is a tau number, because it is divible by the number of its divisors (8).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1166116661) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 72882284 + ... + 72882299.

It is an arithmetic number, because the mean of its divisors is an integer number (273308595).

Almost surely, 2^1166116664 is an apocalyptic number.

It is an amenable number.

1166116664 is a deficient number, since it is larger than the sum of its proper divisors (1020352096).

1166116664 is a wasteful number, since it uses less digits than its factorization.

1166116664 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 145764589 (or 145764585 counting only the distinct ones).

The product of its digits is 31104, while the sum is 38.

The square root of 1166116664 is about 34148.4503894393. The cubic root of 1166116664 is about 1052.5611443387.

The spelling of 1166116664 in words is "one billion, one hundred sixty-six million, one hundred sixteen thousand, six hundred sixty-four".