90668168 has 16 divisors (see below), whose sum is σ = 170277660. Its totient is φ = 45260800.

The previous prime is 90668159. The next prime is 90668203. The reversal of 90668168 is 86186609.

It can be written as a sum of positive squares in 2 ways, for example, as 89453764 + 1214404 = 9458^2 + 1102^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3713 + ... + 13968.

Almost surely, 2^90668168 is an apocalyptic number.

It is an amenable number.

90668168 is a deficient number, since it is larger than the sum of its proper divisors (79609492).

90668168 is a wasteful number, since it uses less digits than its factorization.

90668168 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18328 (or 18324 counting only the distinct ones).

The product of its (nonzero) digits is 124416, while the sum is 44.

The square root of 90668168 is about 9521.9834068328. The cubic root of 90668168 is about 449.2467530256.

The spelling of 90668168 in words is "ninety million, six hundred sixty-eight thousand, one hundred sixty-eight".