890663166 has 24 divisors (see below), whose sum is σ = 1940931720. Its totient is φ = 295170576.

The previous prime is 890663161. The next prime is 890663173. The reversal of 890663166 is 661366098.

890663166 is a `hidden beast` number, since 8 + 9 + 0 + 6 + 631 + 6 + 6 = 666.

It is a Smith number, since the sum of its digits (45) coincides with the sum of the digits of its prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (890663161) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 139896 + ... + 146123.

It is an arithmetic number, because the mean of its divisors is an integer number (80872155).

Almost surely, 2^890663166 is an apocalyptic number.

890663166 is an abundant number, since it is smaller than the sum of its proper divisors (1050268554).

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

890663166 is a wasteful number, since it uses less digits than its factorization.

890663166 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 286200 (or 286197 counting only the distinct ones).

The product of its (nonzero) digits is 279936, while the sum is 45.

The square root of 890663166 is about 29843.9803980635. The cubic root of 890663166 is about 962.1390259580.

The spelling of 890663166 in words is "eight hundred ninety million, six hundred sixty-three thousand, one hundred sixty-six".