1155485268 has 54 divisors (see below), whose sum is σ = 3397682106. Its totient is φ = 330138144.

The previous prime is 1155485231. The next prime is 1155485327. The reversal of 1155485268 is 8625845511.

1155485268 is a `hidden beast` number, since 11 + 554 + 85 + 2 + 6 + 8 = 666.

It can be written as a sum of positive squares in only one way, i.e., 950365584 + 205119684 = 30828^2 + 14322^2 .

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 17 ways as a sum of consecutive naturals, for example, 325755 + ... + 329282.

It is an arithmetic number, because the mean of its divisors is an integer number (62920039).

Almost surely, 2^1155485268 is an apocalyptic number.

1155485268 is a gapful number since it is divisible by the number (18) formed by its first and last digit.

It is an amenable number.

1155485268 is an abundant number, since it is smaller than the sum of its proper divisors (2242196838).

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

1155485268 is a wasteful number, since it uses less digits than its factorization.

1155485268 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 655061 (or 655049 counting only the distinct ones).

The product of its digits is 384000, while the sum is 45.

The square root of 1155485268 is about 33992.4295689496. The cubic root of 1155485268 is about 1049.3526676638.

The spelling of 1155485268 in words is "one billion, one hundred fifty-five million, four hundred eighty-five thousand, two hundred sixty-eight".