1155116612 has 24 divisors (see below), whose sum is σ = 2305008216. Its totient is φ = 501769728.

The previous prime is 1155116597. The next prime is 1155116639. The reversal of 1155116612 is 2166115511.

It can be written as a sum of positive squares in 4 ways, for example, as 405780736 + 749335876 = 20144^2 + 27374^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 652463 + ... + 654230.

It is an arithmetic number, because the mean of its divisors is an integer number (96042009).

Almost surely, 2^1155116612 is an apocalyptic number.

It is an amenable number.

1155116612 is a deficient number, since it is larger than the sum of its proper divisors (1149891604).

1155116612 is a wasteful number, since it uses less digits than its factorization.

1155116612 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1306727 (or 1306725 counting only the distinct ones).

The product of its digits is 1800, while the sum is 29.

The square root of 1155116612 is about 33987.0065171971. The cubic root of 1155116612 is about 1049.2410576137.

The spelling of 1155116612 in words is "one billion, one hundred fifty-five million, one hundred sixteen thousand, six hundred twelve".