163236165136 has 30 divisors (see below), whose sum is σ = 347635700846. Its totient is φ = 74198256000.

The previous prime is 163236165083. The next prime is 163236165143. The reversal of 163236165136 is 631561632361.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 146502155536 + 16734009600 = 382756^2 + 129360^2 .

It is a junction number, because it is equal to n+sod(n) for n = 163236165092 and 163236165101.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 42156165 + ... + 42160036.

Almost surely, 2^163236165136 is an apocalyptic number.

163236165136 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

It is an amenable number.

163236165136 is an abundant number, since it is smaller than the sum of its proper divisors (184399535710).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

163236165136 is a wasteful number, since it uses less digits than its factorization.

163236165136 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 84316231 (or 84316214 counting only the distinct ones).

The product of its digits is 349920, while the sum is 43.

Adding to 163236165136 its reverse (631561632361), we get a palindrome (794797797497).

The spelling of 163236165136 in words is "one hundred sixty-three billion, two hundred thirty-six million, one hundred sixty-five thousand, one hundred thirty-six".