1166560885 has 48 divisors (see below), whose sum is σ = 1664582400. Its totient is φ = 782369280.

The previous prime is 1166560883. The next prime is 1166560937. The reversal of 1166560885 is 5880656611.

It is not a de Polignac number, because 1166560885 - 2¹ = 1166560883 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1166560883) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 3461437 + ... + 3461773.

It is an arithmetic number, because the mean of its divisors is an integer number (34678800).

Almost surely, 2^1166560885 is an apocalyptic number.

It is an amenable number.

1166560885 is a deficient number, since it is larger than the sum of its proper divisors (498021515).

1166560885 is a wasteful number, since it uses less digits than its factorization.

1166560885 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 626 (or 619 counting only the distinct ones).

The product of its (nonzero) digits is 345600, while the sum is 46.

The square root of 1166560885 is about 34154.9540330535. The cubic root of 1166560885 is about 1052.6947817408.

The spelling of 1166560885 in words is "one billion, one hundred sixty-six million, five hundred sixty thousand, eight hundred eighty-five".