663169090 has 16 divisors (see below), whose sum is σ = 1194285888. Its totient is φ = 265138416.

The previous prime is 663169079. The next prime is 663169121. The reversal of 663169090 is 90961366.

It is a happy number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 6979 + ... + 37081.

It is an arithmetic number, because the mean of its divisors is an integer number (74642868).

Almost surely, 2^663169090 is an apocalyptic number.

663169090 is a deficient number, since it is larger than the sum of its proper divisors (531116798).

663169090 is a wasteful number, since it uses less digits than its factorization.

663169090 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 32313.

The product of its (nonzero) digits is 52488, while the sum is 40.

The square root of 663169090 is about 25752.0696255660. The cubic root of 663169090 is about 872.0500779604.

The spelling of 663169090 in words is "six hundred sixty-three million, one hundred sixty-nine thousand, ninety".