1166615656 has 16 divisors (see below), whose sum is σ = 2302531200. Its totient is φ = 552607344.

The previous prime is 1166615629. The next prime is 1166615669. The reversal of 1166615656 is 6565166611.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3837400 + ... + 3837703.

It is an arithmetic number, because the mean of its divisors is an integer number (143908200).

Almost surely, 2^1166615656 is an apocalyptic number.

It is an amenable number.

1166615656 is a deficient number, since it is larger than the sum of its proper divisors (1135915544).

1166615656 is a wasteful number, since it uses less digits than its factorization.

1166615656 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7675128 (or 7675124 counting only the distinct ones).

The product of its digits is 194400, while the sum is 43.

The square root of 1166615656 is about 34155.7558253364. The cubic root of 1166615656 is about 1052.7112564470.

The spelling of 1166615656 in words is "one billion, one hundred sixty-six million, six hundred fifteen thousand, six hundred fifty-six".