1168159280 has 40 divisors (see below), whose sum is σ = 2719096800. Its totient is φ = 466725888.

The previous prime is 1168159277. The next prime is 1168159297. The reversal of 1168159280 is 829518611.

It is a tau number, because it is divible by the number of its divisors (40).

It is a super-2 number, since 2×1168159280² = 2729192206900236800, which contains 22 as substring.

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 7 ways as a sum of consecutive naturals, for example, 65576 + ... + 81464.

It is an arithmetic number, because the mean of its divisors is an integer number (67977420).

Almost surely, 2^1168159280 is an apocalyptic number.

1168159280 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1168159280 is an abundant number, since it is smaller than the sum of its proper divisors (1550937520).

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

1168159280 is a wasteful number, since it uses less digits than its factorization.

1168159280 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16821 (or 16815 counting only the distinct ones).

The product of its (nonzero) digits is 34560, while the sum is 41.

The square root of 1168159280 is about 34178.3451910709. The cubic root of 1168159280 is about 1053.1753550754.

The spelling of 1168159280 in words is "one billion, one hundred sixty-eight million, one hundred fifty-nine thousand, two hundred eighty".