1155996036 has 60 divisors (see below), whose sum is σ = 3254475532. Its totient is φ = 355689792.

The previous prime is 1155995993. The next prime is 1155996041. The reversal of 1155996036 is 6306995511.

1155996036 is a `hidden beast` number, since 1 + 1 + 559 + 9 + 60 + 36 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 257795136 + 898200900 = 16056^2 + 29970^2 .

It is a Smith number, since the sum of its digits (45) coincides with the sum of the digits of its prime factors.

It is a junction number, because it is equal to n+sod(n) for n = 1155995982 and 1155996000.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 133015 + ... + 141438.

Almost surely, 2^1155996036 is an apocalyptic number.

It is an amenable number.

1155996036 is an abundant number, since it is smaller than the sum of its proper divisors (2098479496).

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

1155996036 is a wasteful number, since it uses less digits than its factorization.

1155996036 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 274482 (or 274471 counting only the distinct ones).

The product of its (nonzero) digits is 218700, while the sum is 45.

The square root of 1155996036 is about 33999.9417058324. The cubic root of 1155996036 is about 1049.5072626851.

The spelling of 1155996036 in words is "one billion, one hundred fifty-five million, nine hundred ninety-six thousand, thirty-six".