66235344 has 80 divisors (see below), whose sum is σ = 201891840. Its totient is φ = 18311040.

The previous prime is 66235343. The next prime is 66235357. The reversal of 66235344 is 44353266.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (66235343) 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, 7237 + ... + 13595.

It is an arithmetic number, because the mean of its divisors is an integer number (2523648).

Almost surely, 2^66235344 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 66235344, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (100945920).

66235344 is an abundant number, since it is smaller than the sum of its proper divisors (135656496).

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

66235344 is a wasteful number, since it uses less digits than its factorization.

66235344 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6408 (or 6402 counting only the distinct ones).

The product of its digits is 51840, while the sum is 33.

The square root of 66235344 is about 8138.5099373288. The cubic root of 66235344 is about 404.6037764886.

The spelling of 66235344 in words is "sixty-six million, two hundred thirty-five thousand, three hundred forty-four".