66041472 has 128 divisors (see below), whose sum is σ = 203673600. Its totient is φ = 18570240.

The previous prime is 66041461. The next prime is 66041489. The reversal of 66041472 is 27414066.

It is a tau number, because it is divible by the number of its divisors (128).

It is a super-2 number, since 2×66041472² = 8722952047853568, which contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 212197 + ... + 212507.

It is an arithmetic number, because the mean of its divisors is an integer number (1591200).

Almost surely, 2^66041472 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 66041472, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (101836800).

66041472 is an abundant number, since it is smaller than the sum of its proper divisors (137632128).

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

66041472 is a wasteful number, since it uses less digits than its factorization.

66041472 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 414 (or 402 counting only the distinct ones).

The product of its (nonzero) digits is 8064, while the sum is 30.

The square root of 66041472 is about 8126.5904289560. The cubic root of 66041472 is about 404.2086299482.

The spelling of 66041472 in words is "sixty-six million, forty-one thousand, four hundred seventy-two".