163088660 has 36 divisors (see below), whose sum is σ = 398404692. Its totient is φ = 55915776.

The previous prime is 163088641. The next prime is 163088689. The reversal of 163088660 is 66880361.

It can be written as a sum of positive squares in 2 ways, for example, as 25120144 + 137968516 = 5012^2 + 11746^2 .

It is a super-2 number, since 2×163088660² = 53195822041191200, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 82229 + ... + 84188.

It is an arithmetic number, because the mean of its divisors is an integer number (11066797).

Almost surely, 2^163088660 is an apocalyptic number.

163088660 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

163088660 is an abundant number, since it is smaller than the sum of its proper divisors (235316032).

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

163088660 is a wasteful number, since it uses less digits than its factorization.

163088660 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 166440 (or 166431 counting only the distinct ones).

The product of its (nonzero) digits is 41472, while the sum is 38.

The square root of 163088660 is about 12770.6170563524. The cubic root of 163088660 is about 546.3545801126.

The spelling of 163088660 in words is "one hundred sixty-three million, eighty-eight thousand, six hundred sixty".