162111475511 has 4 divisors (see below), whose sum is σ = 162143767224. Its totient is φ = 162079183800.

The previous prime is 162111475489. The next prime is 162111475541. The reversal of 162111475511 is 115574111261.

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

It is a cyclic number.

It is not a de Polignac number, because 162111475511 - 2³⁴ = 144931606327 is a prime.

It is a super-2 number, since 2×162111475511² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (162111475541) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 16138325 + ... + 16148366.

It is an arithmetic number, because the mean of its divisors is an integer number (40535941806).

Almost surely, 2^162111475511 is an apocalyptic number.

162111475511 is a deficient number, since it is larger than the sum of its proper divisors (32291713).

162111475511 is an equidigital number, since it uses as much as digits as its factorization.

162111475511 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 32291712.

The product of its digits is 8400, while the sum is 35.

Adding to 162111475511 its reverse (115574111261), we get a palindrome (277685586772).

The spelling of 162111475511 in words is "one hundred sixty-two billion, one hundred eleven million, four hundred seventy-five thousand, five hundred eleven".