162111475538 has 16 divisors (see below), whose sum is σ = 243622205280. Its totient is φ = 80904153600.

The previous prime is 162111475489. The next prime is 162111475541. The reversal of 162111475538 is 835574111261.

It is a super-2 number, since 2×162111475538² (a number of 23 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4519133 + ... + 4554863.

It is an arithmetic number, because the mean of its divisors is an integer number (15226387830).

Almost surely, 2^162111475538 is an apocalyptic number.

162111475538 is a deficient number, since it is larger than the sum of its proper divisors (81510729742).

162111475538 is a wasteful number, since it uses less digits than its factorization.

162111475538 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 39913.

The product of its digits is 201600, while the sum is 44.

Adding to 162111475538 its reverse (835574111261), we get a palindrome (997685586799).

The spelling of 162111475538 in words is "one hundred sixty-two billion, one hundred eleven million, four hundred seventy-five thousand, five hundred thirty-eight".