66041056 has 48 divisors (see below), whose sum is σ = 139636224. Its totient is φ = 30633984.

The previous prime is 66041023. The next prime is 66041057. The reversal of 66041056 is 65014066.

It is a super-2 number, since 2×66041056² = 8722842155190272, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (66041057) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 38881 + ... + 40543.

It is an arithmetic number, because the mean of its divisors is an integer number (2909088).

Almost surely, 2^66041056 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 66041056, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (69818112).

66041056 is an abundant number, since it is smaller than the sum of its proper divisors (73595168).

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

66041056 is a wasteful number, since it uses less digits than its factorization.

66041056 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1763 (or 1755 counting only the distinct ones).

The product of its (nonzero) digits is 4320, while the sum is 28.

The square root of 66041056 is about 8126.5648339258. The cubic root of 66041056 is about 404.2077812333.

The spelling of 66041056 in words is "sixty-six million, forty-one thousand, fifty-six".