1165433555 has 32 divisors (see below), whose sum is σ = 1739683008. Its totient is φ = 736358400.

The previous prime is 1165433543. The next prime is 1165433587. The reversal of 1165433555 is 5553345611.

It is a de Polignac number, because none of the positive numbers 2^k-1165433555 is a prime.

It is a super-2 number, since 2×1165433555² = 2716470742239876050, which contains 22 as substring.

It is a Duffinian number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 35786 + ... + 60095.

It is an arithmetic number, because the mean of its divisors is an integer number (54365094).

Almost surely, 2^1165433555 is an apocalyptic number.

1165433555 is a deficient number, since it is larger than the sum of its proper divisors (574249453).

1165433555 is a wasteful number, since it uses less digits than its factorization.

1165433555 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 95927.

The product of its digits is 135000, while the sum is 38.

The square root of 1165433555 is about 34138.4468744552. The cubic root of 1165433555 is about 1052.3555747310.

The spelling of 1165433555 in words is "one billion, one hundred sixty-five million, four hundred thirty-three thousand, five hundred fifty-five".