66098800 has 30 divisors (see below), whose sum is σ = 158803328. Its totient is φ = 26439360.

The previous prime is 66098741. The next prime is 66098827. The reversal of 66098800 is 889066.

66098800 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×66098800² = 8738102722880000, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 66098800.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 82224 + ... + 83023.

Almost surely, 2^66098800 is an apocalyptic number.

It is an amenable number.

66098800 is an abundant number, since it is smaller than the sum of its proper divisors (92704528).

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

66098800 is a wasteful number, since it uses less digits than its factorization.

66098800 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 165265 (or 165254 counting only the distinct ones).

The product of its (nonzero) digits is 20736, while the sum is 37.

The square root of 66098800 is about 8130.1168503288. The cubic root of 66098800 is about 404.3255553176.

The spelling of 66098800 in words is "sixty-six million, ninety-eight thousand, eight hundred".