1155001168 has 20 divisors (see below), whose sum is σ = 2238342228. Its totient is φ = 577364480.

The previous prime is 1155001153. The next prime is 1155001181. The reversal of 1155001168 is 8611005511.

It can be written as a sum of positive squares in 2 ways, for example, as 343435024 + 811566144 = 18532^2 + 28488^2 .

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 124830 + ... + 133762.

Almost surely, 2^1155001168 is an apocalyptic number.

It is an amenable number.

1155001168 is a deficient number, since it is larger than the sum of its proper divisors (1083341060).

1155001168 is an equidigital number, since it uses as much as digits as its factorization.

1155001168 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17022 (or 17016 counting only the distinct ones).

The product of its (nonzero) digits is 1200, while the sum is 28.

The square root of 1155001168 is about 33985.3081198332. The cubic root of 1155001168 is about 1049.2061022338.

Adding to 1155001168 its reverse (8611005511), we get a palindrome (9766006679).

The spelling of 1155001168 in words is "one billion, one hundred fifty-five million, one thousand, one hundred sixty-eight".