1166004753489 has 27 divisors (see below), whose sum is σ = 1726506430779. Its totient is φ = 758290690080.

The previous prime is 1166004753479. The next prime is 1166004753491. The reversal of 1166004753489 is 9843574006611.

The square root of 1166004753489 is 1079817.

It is a perfect power (a square), and thus also a powerful number.

1166004753489 is a `hidden beast` number, since 1 + 1 + 6 + 60 + 0 + 47 + 534 + 8 + 9 = 666.

It can be written as a sum of positive squares in only one way, i.e., 56184643089 + 1109820110400 = 237033^2 + 1053480^2 .

It is not a de Polignac number, because 1166004753489 - 2¹⁵ = 1166004720721 is a prime.

It is not an unprimeable number, because it can be changed into a prime (1166004753409) by changing a digit.

It is a polite number, since it can be written in 26 ways as a sum of consecutive naturals, for example, 132813102 + ... + 132821880.

Almost surely, 2^{1166004753489} is an apocalyptic number.

1166004753489 is the 1079817-th square number.

1166004753489 is the 539909-th centered octagonal number.

It is an amenable number.

1166004753489 is a deficient number, since it is larger than the sum of its proper divisors (560501677290).

1166004753489 is an frugal number, since it uses more digits than its factorization.

1166004753489 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17646 (or 8823 counting only the distinct ones).

The product of its (nonzero) digits is 4354560, while the sum is 54.

The spelling of 1166004753489 in words is "one trillion, one hundred sixty-six billion, four million, seven hundred fifty-three thousand, four hundred eighty-nine".