66841152 has 112 divisors (see below), whose sum is σ = 207215232. Its totient is φ = 18616320.

The previous prime is 66841141. The next prime is 66841153. The reversal of 66841152 is 25114866.

It is a tau number, because it is divible by the number of its divisors (112).

It is not an unprimeable number, because it can be changed into a prime (66841153) 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, 54498 + ... + 55710.

It is an arithmetic number, because the mean of its divisors is an integer number (1850136).

Almost surely, 2^66841152 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 66841152, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (103607616).

66841152 is an abundant number, since it is smaller than the sum of its proper divisors (140374080).

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

66841152 is a wasteful number, since it uses less digits than its factorization.

66841152 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1276 (or 1266 counting only the distinct ones).

The product of its digits is 11520, while the sum is 33.

The square root of 66841152 is about 8175.6438278585. The cubic root of 66841152 is about 405.8335765447.

The spelling of 66841152 in words is "sixty-six million, eight hundred forty-one thousand, one hundred fifty-two".