66482406 has 48 divisors (see below), whose sum is σ = 152334000. Its totient is φ = 20896704.

The previous prime is 66482389. The next prime is 66482407. The reversal of 66482406 is 60428466.

It is a happy number.

66482406 is a `hidden beast` number, since 6 + 648 + 2 + 4 + 0 + 6 = 666.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (66482407) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 119080 + ... + 119636.

It is an arithmetic number, because the mean of its divisors is an integer number (3173625).

Almost surely, 2^66482406 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 66482406, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (76167000).

66482406 is an abundant number, since it is smaller than the sum of its proper divisors (85851594).

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

66482406 is a wasteful number, since it uses less digits than its factorization.

66482406 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 933 (or 930 counting only the distinct ones).

The product of its (nonzero) digits is 55296, while the sum is 36.

The square root of 66482406 is about 8153.6743864346. The cubic root of 66482406 is about 405.1062181391.

The spelling of 66482406 in words is "sixty-six million, four hundred eighty-two thousand, four hundred six".