1166560136 has 64 divisors (see below), whose sum is σ = 2541350400. Its totient is φ = 491692032.

The previous prime is 1166560127. The next prime is 1166560139. The reversal of 1166560136 is 6310656611.

It is a junction number, because it is equal to n+sod(n) for n = 1166560096 and 1166560105.

It is not an unprimeable number, because it can be changed into a prime (1166560139) by changing a digit.

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 15 ways as a sum of consecutive naturals, for example, 2021480 + ... + 2022056.

It is an arithmetic number, because the mean of its divisors is an integer number (39708600).

Almost surely, 2^1166560136 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1166560136, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1270675200).

1166560136 is an abundant number, since it is smaller than the sum of its proper divisors (1374790264).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1166560136 is a wasteful number, since it uses less digits than its factorization.

1166560136 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1126 (or 1122 counting only the distinct ones).

The product of its (nonzero) digits is 19440, while the sum is 35.

The square root of 1166560136 is about 34154.9430683174. The cubic root of 1166560136 is about 1052.6945564436.

The spelling of 1166560136 in words is "one billion, one hundred sixty-six million, five hundred sixty thousand, one hundred thirty-six".