11420442165 has 16 divisors (see below), whose sum is σ = 19933862976. Its totient is φ = 5537184000.

The previous prime is 11420442133. The next prime is 11420442167. The reversal of 11420442165 is 56124402411.

11420442165 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 11420442165 - 2⁵ = 11420442133 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11420442167) 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 15 ways as a sum of consecutive naturals, for example, 34607236 + ... + 34607565.

It is an arithmetic number, because the mean of its divisors is an integer number (1245866436).

Almost surely, 2^11420442165 is an apocalyptic number.

11420442165 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

11420442165 is a deficient number, since it is larger than the sum of its proper divisors (8513420811).

11420442165 is a wasteful number, since it uses less digits than its factorization.

11420442165 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 69214820.

The product of its (nonzero) digits is 7680, while the sum is 30.

Adding to 11420442165 its reverse (56124402411), we get a palindrome (67544844576).

The spelling of 11420442165 in words is "eleven billion, four hundred twenty million, four hundred forty-two thousand, one hundred sixty-five".