1155565338 has 8 divisors (see below), whose sum is σ = 2311130688. Its totient is φ = 385188444.

The previous prime is 1155565321. The next prime is 1155565391. The reversal of 1155565338 is 8335655511.

It is a sphenic number, since it is the product of 3 distinct primes.

1155565338 is an admirable number.

It is a Smith number, since the sum of its digits (42) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a self number, because there is not a number n which added to its sum of digits gives 1155565338.

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, 96297106 + ... + 96297117.

It is an arithmetic number, because the mean of its divisors is an integer number (288891336).

Almost surely, 2^1155565338 is an apocalyptic number.

1155565338 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

1155565338 is a wasteful number, since it uses less digits than its factorization.

1155565338 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 192594228.

The product of its digits is 270000, while the sum is 42.

The square root of 1155565338 is about 33993.6073107871. The cubic root of 1155565338 is about 1049.3769055979.

The spelling of 1155565338 in words is "one billion, one hundred fifty-five million, five hundred sixty-five thousand, three hundred thirty-eight".