66298336 has 96 divisors (see below), whose sum is σ = 149361408. Its totient is φ = 28753920.

The previous prime is 66298333. The next prime is 66298357. The reversal of 66298336 is 63389266.

It is a junction number, because it is equal to n+sod(n) for n = 66298292 and 66298301.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (66298333) 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, 683440 + ... + 683536.

It is an arithmetic number, because the mean of its divisors is an integer number (1555848).

Almost surely, 2^66298336 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 66298336, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (74680704).

66298336 is an abundant number, since it is smaller than the sum of its proper divisors (83063072).

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

66298336 is a wasteful number, since it uses less digits than its factorization.

66298336 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 204 (or 196 counting only the distinct ones).

The product of its digits is 279936, while the sum is 43.

The square root of 66298336 is about 8142.3790135316. The cubic root of 66298336 is about 404.7319997011.

The spelling of 66298336 in words is "sixty-six million, two hundred ninety-eight thousand, three hundred thirty-six".