66124884 has 48 divisors (see below), whose sum is σ = 180443648. Its totient is φ = 18452448.

The previous prime is 66124879. The next prime is 66124907. The reversal of 66124884 is 48842166.

It is a congruent number.

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, 5542 + ... + 12765.

Almost surely, 2^66124884 is an apocalyptic number.

It is an amenable number.

66124884 is an abundant number, since it is smaller than the sum of its proper divisors (114318764).

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

66124884 is a wasteful number, since it uses less digits than its factorization.

66124884 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18364 (or 18362 counting only the distinct ones).

The product of its digits is 73728, while the sum is 39.

The square root of 66124884 is about 8131.7208510868. The cubic root of 66124884 is about 404.3787334933.

The spelling of 66124884 in words is "sixty-six million, one hundred twenty-four thousand, eight hundred eighty-four".