1163456660 has 48 divisors (see below), whose sum is σ = 2563502592. Its totient is φ = 442972800.

The previous prime is 1163456641. The next prime is 1163456663. The reversal of 1163456660 is 666543611.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1163456663) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 22439 + ... + 53201.

It is an arithmetic number, because the mean of its divisors is an integer number (53406304).

Almost surely, 2^1163456660 is an apocalyptic number.

1163456660 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1163456660, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1281751296).

1163456660 is an abundant number, since it is smaller than the sum of its proper divisors (1400045932).

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

1163456660 is a wasteful number, since it uses less digits than its factorization.

1163456660 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 30864 (or 30862 counting only the distinct ones).

The product of its (nonzero) digits is 77760, while the sum is 38.

The square root of 1163456660 is about 34109.4805002949. The cubic root of 1163456660 is about 1051.7602100611.

The spelling of 1163456660 in words is "one billion, one hundred sixty-three million, four hundred fifty-six thousand, six hundred sixty".