162236889938 has 6 divisors (see below), whose sum is σ = 243356189349. Its totient is φ = 81118160156.

The previous prime is 162236889937. The next prime is 162236889989. The reversal of 162236889938 is 839988632261.

It can be written as a sum of positive squares in 2 ways, for example, as 112568973169 + 49667916769 = 335513^2 + 222863^2 .

It is an ABA number since it can be written as A⋅B^A, here for A=2, B=284813.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (162236889931) by changing a digit.

It is a polite number, since it can be written in 2 ways as a sum of consecutive naturals, for example, 427220 + ... + 712032.

Almost surely, 2^162236889938 is an apocalyptic number.

162236889938 is a deficient number, since it is larger than the sum of its proper divisors (81119299411).

162236889938 is an frugal number, since it uses more digits than its factorization.

162236889938 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 569628 (or 284815 counting only the distinct ones).

The product of its digits is 53747712, while the sum is 65.

The spelling of 162236889938 in words is "one hundred sixty-two billion, two hundred thirty-six million, eight hundred eighty-nine thousand, nine hundred thirty-eight".