1172158560 has 96 divisors (see below), whose sum is σ = 4102570080. Its totient is φ = 312574464.

The previous prime is 1172158523. The next prime is 1172158567. The reversal of 1172158560 is 658512711.

1172158560 is a `hidden beast` number, since 1 + 1 + 72 + 1 + 585 + 6 + 0 = 666.

It is a tau number, because it is divible by the number of its divisors (96).

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1172158567) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 131347 + ... + 139986.

It is an arithmetic number, because the mean of its divisors is an integer number (42735105).

Almost surely, 2^1172158560 is an apocalyptic number.

1172158560 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1172158560 is an abundant number, since it is smaller than the sum of its proper divisors (2930411520).

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

1172158560 is a wasteful number, since it uses less digits than its factorization.

1172158560 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 271357 (or 271343 counting only the distinct ones).

The product of its (nonzero) digits is 16800, while the sum is 36.

The square root of 1172158560 is about 34236.8012524535. The cubic root of 1172158560 is about 1054.3758607752.

The spelling of 1172158560 in words is "one billion, one hundred seventy-two million, one hundred fifty-eight thousand, five hundred sixty".