163161630 has 24 divisors (see below), whose sum is σ = 424220472. Its totient is φ = 43509744.

The previous prime is 163161629. The next prime is 163161637. The reversal of 163161630 is 36161361.

It is a happy number.

163161630 is a `hidden beast` number, since 16 + 3 + 1 + 616 + 30 = 666.

It is a junction number, because it is equal to n+sod(n) for n = 163161594 and 163161603.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (163161637) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 906364 + ... + 906543.

It is an arithmetic number, because the mean of its divisors is an integer number (17675853).

Almost surely, 2^163161630 is an apocalyptic number.

163161630 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

163161630 is an abundant number, since it is smaller than the sum of its proper divisors (261058842).

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

163161630 is a wasteful number, since it uses less digits than its factorization.

163161630 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1812920 (or 1812917 counting only the distinct ones).

The product of its (nonzero) digits is 1944, while the sum is 27.

The square root of 163161630 is about 12773.4736857286. The cubic root of 163161630 is about 546.4360522584.

The spelling of 163161630 in words is "one hundred sixty-three million, one hundred sixty-one thousand, six hundred thirty".