1155662804 has 12 divisors (see below), whose sum is σ = 2023007700. Its totient is φ = 577660608.

The previous prime is 1155662779. The next prime is 1155662861. The reversal of 1155662804 is 4082665511.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 292478404 + 863184400 = 17102^2 + 29380^2 .

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, 26819 + ... + 55050.

It is an arithmetic number, because the mean of its divisors is an integer number (168583975).

Almost surely, 2^1155662804 is an apocalyptic number.

It is an amenable number.

1155662804 is a deficient number, since it is larger than the sum of its proper divisors (867344896).

1155662804 is a wasteful number, since it uses less digits than its factorization.

1155662804 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 85402 (or 85400 counting only the distinct ones).

The product of its (nonzero) digits is 57600, while the sum is 38.

The square root of 1155662804 is about 33995.0408736333. The cubic root of 1155662804 is about 1049.4064079522.

The spelling of 1155662804 in words is "one billion, one hundred fifty-five million, six hundred sixty-two thousand, eight hundred four".