165056611 has 8 divisors (see below), whose sum is σ = 171466848. Its totient is φ = 158760000.

The previous prime is 165056609. The next prime is 165056627. The reversal of 165056611 is 116650561.

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 165056611 - 2¹ = 165056609 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (165056651) 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 7 ways as a sum of consecutive naturals, for example, 25440 + ... + 31261.

It is an arithmetic number, because the mean of its divisors is an integer number (21433356).

Almost surely, 2^165056611 is an apocalyptic number.

165056611 is a deficient number, since it is larger than the sum of its proper divisors (6410237).

165056611 is an equidigital number, since it uses as much as digits as its factorization.

165056611 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 56813.

The product of its (nonzero) digits is 5400, while the sum is 31.

The square root of 165056611 is about 12847.4359698735. The cubic root of 165056611 is about 548.5433754210.

The spelling of 165056611 in words is "one hundred sixty-five million, fifty-six thousand, six hundred eleven".