1100216165 has 4 divisors (see below), whose sum is σ = 1320259404. Its totient is φ = 880172928.

The previous prime is 1100216153. The next prime is 1100216167. The reversal of 1100216165 is 5616120011.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 660181636 + 440034529 = 25694^2 + 20977^2 .

It is a cyclic number.

It is not a de Polignac number, because 1100216165 - 2¹⁶ = 1100150629 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 1100216165.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1100216167) 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 3 ways as a sum of consecutive naturals, for example, 110021612 + ... + 110021621.

It is an arithmetic number, because the mean of its divisors is an integer number (330064851).

Almost surely, 2^1100216165 is an apocalyptic number.

It is an amenable number.

1100216165 is a deficient number, since it is larger than the sum of its proper divisors (220043239).

1100216165 is an equidigital number, since it uses as much as digits as its factorization.

1100216165 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 220043238.

The product of its (nonzero) digits is 360, while the sum is 23.

The square root of 1100216165 is about 33169.5065534596. The cubic root of 1100216165 is about 1032.3477300672.

Adding to 1100216165 its reverse (5616120011), we get a palindrome (6716336176).

The spelling of 1100216165 in words is "one billion, one hundred million, two hundred sixteen thousand, one hundred sixty-five".