1155104656 has 40 divisors (see below), whose sum is σ = 2297129760. Its totient is φ = 562493184.

The previous prime is 1155104651. The next prime is 1155104659. The reversal of 1155104656 is 6564015511.

It is not an unprimeable number, because it can be changed into a prime (1155104651) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 89355 + ... + 101461.

It is an arithmetic number, because the mean of its divisors is an integer number (57428244).

Almost surely, 2^1155104656 is an apocalyptic number.

1155104656 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

It is an amenable number.

1155104656 is a deficient number, since it is larger than the sum of its proper divisors (1142025104).

1155104656 is a wasteful number, since it uses less digits than its factorization.

1155104656 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12271 (or 12265 counting only the distinct ones).

The product of its (nonzero) digits is 18000, while the sum is 34.

The square root of 1155104656 is about 33986.8306259939. The cubic root of 1155104656 is about 1049.2374375552.

The spelling of 1155104656 in words is "one billion, one hundred fifty-five million, one hundred four thousand, six hundred fifty-six".