1165461655 has 8 divisors (see below), whose sum is σ = 1411625232. Its totient is φ = 923655168.

The previous prime is 1165461643. The next prime is 1165461701. The reversal of 1165461655 is 5561645611.

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

It is a cyclic number.

It is not a de Polignac number, because 1165461655 - 2⁷ = 1165461527 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1088682 + ... + 1089751.

It is an arithmetic number, because the mean of its divisors is an integer number (176453154).

Almost surely, 2^1165461655 is an apocalyptic number.

1165461655 is a deficient number, since it is larger than the sum of its proper divisors (246163577).

1165461655 is a wasteful number, since it uses less digits than its factorization.

1165461655 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2178545.

The product of its digits is 108000, while the sum is 40.

The square root of 1165461655 is about 34138.8584314121. The cubic root of 1165461655 is about 1052.3640325145.

The spelling of 1165461655 in words is "one billion, one hundred sixty-five million, four hundred sixty-one thousand, six hundred fifty-five".