1163526660 has 96 divisors (see below), whose sum is σ = 3624835200. Its totient is φ = 309847680.

The previous prime is 1163526647. The next prime is 1163526677. The reversal of 1163526660 is 666253611.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 696306 + ... + 697974.

It is an arithmetic number, because the mean of its divisors is an integer number (37758700).

Almost surely, 2^1163526660 is an apocalyptic number.

1163526660 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 1163526660, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1812417600).

1163526660 is an abundant number, since it is smaller than the sum of its proper divisors (2461308540).

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

1163526660 is a wasteful number, since it uses less digits than its factorization.

1163526660 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2978 (or 2970 counting only the distinct ones).

The product of its (nonzero) digits is 38880, while the sum is 36.

The square root of 1163526660 is about 34110.5065925442. The cubic root of 1163526660 is about 1051.7813028789.

The spelling of 1163526660 in words is "one billion, one hundred sixty-three million, five hundred twenty-six thousand, six hundred sixty".