90168266 has 16 divisors (see below), whose sum is σ = 139200768. Its totient is φ = 43778400.

The previous prime is 90168263. The next prime is 90168271. The reversal of 90168266 is 66286109.

It is not an unprimeable number, because it can be changed into a prime (90168263) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 15821 + ... + 20751.

It is an arithmetic number, because the mean of its divisors is an integer number (8700048).

Almost surely, 2^90168266 is an apocalyptic number.

90168266 is a deficient number, since it is larger than the sum of its proper divisors (49032502).

90168266 is a wasteful number, since it uses less digits than its factorization.

90168266 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5197.

The product of its (nonzero) digits is 31104, while the sum is 38.

The square root of 90168266 is about 9495.6972361170. The cubic root of 90168266 is about 448.4195852475.

The spelling of 90168266 in words is "ninety million, one hundred sixty-eight thousand, two hundred sixty-six".