163489536 has 288 divisors, whose sum is σ = 575590400. Its totient is φ = 44789760.

The previous prime is 163489511. The next prime is 163489549. The reversal of 163489536 is 635984361.

163489536 is a `hidden beast` number, since 1 + 6 + 34 + 89 + 536 = 666.

It is a tau number, because it is divible by the number of its divisors (288).

It is a junction number, because it is equal to n+sod(n) for n = 163489491 and 163489500.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1499850 + ... + 1499958.

Almost surely, 2^163489536 is an apocalyptic number.

163489536 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 163489536, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (287795200).

163489536 is an abundant number, since it is smaller than the sum of its proper divisors (412100864).

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

163489536 is a wasteful number, since it uses less digits than its factorization.

163489536 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 172 (or 152 counting only the distinct ones).

The product of its digits is 466560, while the sum is 45.

The square root of 163489536 is about 12786.3026712181. The cubic root of 163489536 is about 546.8018649018.

It can be divided in two parts, 163489 and 536, that added together give a square (164025 = 405²).

The spelling of 163489536 in words is "one hundred sixty-three million, four hundred eighty-nine thousand, five hundred thirty-six".