2165014505 has 8 divisors (see below), whose sum is σ = 2603355072. Its totient is φ = 1728453168.

The previous prime is 2165014493. The next prime is 2165014507. The reversal of 2165014505 is 5054105612.

It is a happy number.

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 2165014505 - 2⁶ = 2165014441 is a prime.

It is an alternating number because its digits alternate between even and odd.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2165014507) by changing a digit.

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 7 ways as a sum of consecutive naturals, for example, 442127 + ... + 446996.

It is an arithmetic number, because the mean of its divisors is an integer number (325419384).

Almost surely, 2^2165014505 is an apocalyptic number.

It is an amenable number.

2165014505 is a deficient number, since it is larger than the sum of its proper divisors (438340567).

2165014505 is an equidigital number, since it uses as much as digits as its factorization.

2165014505 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 889615.

The product of its (nonzero) digits is 6000, while the sum is 29.

The square root of 2165014505 is about 46529.7163649210. The cubic root of 2165014505 is about 1293.6603579204.

The spelling of 2165014505 in words is "two billion, one hundred sixty-five million, fourteen thousand, five hundred five".