66846198 has 32 divisors (see below), whose sum is σ = 137856096. Its totient is φ = 21593088.

The previous prime is 66846191. The next prime is 66846203. The reversal of 66846198 is 89164866.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (66846191) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 77940 + ... + 78792.

It is an arithmetic number, because the mean of its divisors is an integer number (4308003).

Almost surely, 2^66846198 is an apocalyptic number.

66846198 is an abundant number, since it is smaller than the sum of its proper divisors (71009898).

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

66846198 is a wasteful number, since it uses less digits than its factorization.

66846198 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1248.

The product of its digits is 497664, while the sum is 48.

The square root of 66846198 is about 8175.9524215837. The cubic root of 66846198 is about 405.8437887400.

The spelling of 66846198 in words is "sixty-six million, eight hundred forty-six thousand, one hundred ninety-eight".