1155665562 has 32 divisors (see below), whose sum is σ = 2363412480. Its totient is φ = 376637040.

The previous prime is 1155665561. The next prime is 1155665569. The reversal of 1155665562 is 2655665511.

It is not an unprimeable number, because it can be changed into a prime (1155665561) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 36987 + ... + 60657.

It is an arithmetic number, because the mean of its divisors is an integer number (73856640).

Almost surely, 2^1155665562 is an apocalyptic number.

1155665562 is an abundant number, since it is smaller than the sum of its proper divisors (1207746918).

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

1155665562 is a wasteful number, since it uses less digits than its factorization.

1155665562 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 23858.

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

The square root of 1155665562 is about 33995.0814383493. The cubic root of 1155665562 is about 1049.4072427576.

The spelling of 1155665562 in words is "one billion, one hundred fifty-five million, six hundred sixty-five thousand, five hundred sixty-two".