66484120 has 16 divisors (see below), whose sum is σ = 149589360. Its totient is φ = 26593632.

The previous prime is 66484087. The next prime is 66484123. The reversal of 66484120 is 2148466.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (66484123) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 831012 + ... + 831091.

It is an arithmetic number, because the mean of its divisors is an integer number (9349335).

Almost surely, 2^66484120 is an apocalyptic number.

It is an amenable number.

66484120 is an abundant number, since it is smaller than the sum of its proper divisors (83105240).

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

66484120 is a wasteful number, since it uses less digits than its factorization.

66484120 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1662114 (or 1662110 counting only the distinct ones).

The product of its (nonzero) digits is 9216, while the sum is 31.

The square root of 66484120 is about 8153.7794917449. The cubic root of 66484120 is about 405.1096994917.

The spelling of 66484120 in words is "sixty-six million, four hundred eighty-four thousand, one hundred twenty".