1155516056 has 16 divisors (see below), whose sum is σ = 2212691040. Its totient is φ = 565465120.

The previous prime is 1155516029. The next prime is 1155516071. The reversal of 1155516056 is 6506155511.

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, 1536215 + ... + 1536966.

It is an arithmetic number, because the mean of its divisors is an integer number (138293190).

Almost surely, 2^1155516056 is an apocalyptic number.

It is an amenable number.

1155516056 is a deficient number, since it is larger than the sum of its proper divisors (1057174984).

1155516056 is a wasteful number, since it uses less digits than its factorization.

1155516056 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3073234 (or 3073230 counting only the distinct ones).

The product of its (nonzero) digits is 22500, while the sum is 35.

The square root of 1155516056 is about 33992.8824314738. The cubic root of 1155516056 is about 1049.3619876104.

The spelling of 1155516056 in words is "one billion, one hundred fifty-five million, five hundred sixteen thousand, fifty-six".