66800334 has 32 divisors (see below), whose sum is σ = 135555840. Its totient is φ = 21943872.

The previous prime is 66800297. The next prime is 66800339. The reversal of 66800334 is 43300866.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (66800339) 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 in 15 ways as a sum of consecutive naturals, for example, 163122 + ... + 163530.

It is an arithmetic number, because the mean of its divisors is an integer number (4236120).

Almost surely, 2^66800334 is an apocalyptic number.

66800334 is an abundant number, since it is smaller than the sum of its proper divisors (68755506).

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

66800334 is a wasteful number, since it uses less digits than its factorization.

66800334 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 744.

The product of its (nonzero) digits is 10368, while the sum is 30.

The square root of 66800334 is about 8173.1471294722. The cubic root of 66800334 is about 405.7509493628.

The spelling of 66800334 in words is "sixty-six million, eight hundred thousand, three hundred thirty-four".