98505666 has 64 divisors (see below), whose sum is σ = 251228160. Its totient is φ = 28026000.

The previous prime is 98505629. The next prime is 98505677. The reversal of 98505666 is 66650589.

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 an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 130791 + ... + 131541.

It is an arithmetic number, because the mean of its divisors is an integer number (3925440).

Almost surely, 2^98505666 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 98505666, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (125614080).

98505666 is an abundant number, since it is smaller than the sum of its proper divisors (152722494).

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

98505666 is a wasteful number, since it uses less digits than its factorization.

98505666 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1116 (or 1110 counting only the distinct ones).

The product of its (nonzero) digits is 388800, while the sum is 45.

The square root of 98505666 is about 9925.0020654910. The cubic root of 98505666 is about 461.8352423139.

The spelling of 98505666 in words is "ninety-eight million, five hundred five thousand, six hundred sixty-six".