1091882160 has 80 divisors (see below), whose sum is σ = 3760934880. Its totient is φ = 291168000.

The previous prime is 1091882131. The next prime is 1091882189. The reversal of 1091882160 is 612881901.

It is an interprime number because it is at equal distance from previous prime (1091882131) and next prime (1091882189).

It is a tau number, because it is divible by the number of its divisors (80).

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

It is an unprimeable number.

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, 250591 + ... + 254910.

It is an arithmetic number, because the mean of its divisors is an integer number (47011686).

Almost surely, 2^1091882160 is an apocalyptic number.

1091882160 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1091882160 is an abundant number, since it is smaller than the sum of its proper divisors (2669052720).

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

1091882160 is a wasteful number, since it uses less digits than its factorization.

1091882160 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 505523 (or 505511 counting only the distinct ones).

The product of its (nonzero) digits is 6912, while the sum is 36.

The square root of 1091882160 is about 33043.6402353010. The cubic root of 1091882160 is about 1029.7344839845.

The spelling of 1091882160 in words is "one billion, ninety-one million, eight hundred eighty-two thousand, one hundred sixty".