1166788566404 has 24 divisors (see below), whose sum is σ = 2042919082848. Its totient is φ = 583097492160.

The previous prime is 1166788566347. The next prime is 1166788566407. The reversal of 1166788566404 is 4046658876611.

It is a super-2 number, since 2×1166788566404² (a number of 25 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (1166788566407) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 83892419 + ... + 83906325.

It is an arithmetic number, because the mean of its divisors is an integer number (85121628452).

Almost surely, 2^{1166788566404} is an apocalyptic number.

It is an amenable number.

1166788566404 is a deficient number, since it is larger than the sum of its proper divisors (876130516444).

1166788566404 is a wasteful number, since it uses less digits than its factorization.

1166788566404 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 23075 (or 23073 counting only the distinct ones).

The product of its (nonzero) digits is 46448640, while the sum is 62.

The spelling of 1166788566404 in words is "one trillion, one hundred sixty-six billion, seven hundred eighty-eight million, five hundred sixty-six thousand, four hundred four".