90166099 has 2 divisors, whose sum is σ = 90166100. Its totient is φ = 90166098.

The previous prime is 90166067. The next prime is 90166123. The reversal of 90166099 is 99066109.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 90166099 - 2⁵ = 90166067 is a prime.

It is not a weakly prime, because it can be changed into another prime (90166499) 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 as a sum of consecutive naturals, namely, 45083049 + 45083050.

It is an arithmetic number, because the mean of its divisors is an integer number (45083050).

Almost surely, 2^90166099 is an apocalyptic number.

90166099 is a deficient number, since it is larger than the sum of its proper divisors (1).

90166099 is an equidigital number, since it uses as much as digits as its factorization.

90166099 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 26244, while the sum is 40.

The square root of 90166099 is about 9495.5831311194. The cubic root of 90166099 is about 448.4159929525.

The spelling of 90166099 in words is "ninety million, one hundred sixty-six thousand, ninety-nine".