66041152 has 42 divisors (see below), whose sum is σ = 135403082. Its totient is φ = 31935744.

The previous prime is 66041099. The next prime is 66041159. The reversal of 66041152 is 25114066.

It can be written as a sum of positive squares in only one way, i.e., 64256256 + 1784896 = 8016^2 + 1336^2 .

It is a super-2 number, since 2×66041152² = 8722867514974208, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (66041159) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 395373 + ... + 395539.

Almost surely, 2^66041152 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 66041152, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (67701541).

66041152 is an abundant number, since it is smaller than the sum of its proper divisors (69361930).

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

66041152 is an equidigital number, since it uses as much as digits as its factorization.

66041152 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 383 (or 206 counting only the distinct ones).

The product of its (nonzero) digits is 1440, while the sum is 25.

The square root of 66041152 is about 8126.5707404784. The cubic root of 66041152 is about 404.2079770909.

The spelling of 66041152 in words is "sixty-six million, forty-one thousand, one hundred fifty-two".