66535124 has 12 divisors (see below), whose sum is σ = 117839904. Its totient is φ = 32866584.

The previous prime is 66535121. The next prime is 66535129. The reversal of 66535124 is 42153566.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (66535121) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 99872 + ... + 100535.

It is an arithmetic number, because the mean of its divisors is an integer number (9819992).

Almost surely, 2^66535124 is an apocalyptic number.

It is an amenable number.

66535124 is a deficient number, since it is larger than the sum of its proper divisors (51304780).

66535124 is a wasteful number, since it uses less digits than its factorization.

66535124 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 200494 (or 200492 counting only the distinct ones).

The product of its digits is 21600, while the sum is 32.

The square root of 66535124 is about 8156.9065214700. The cubic root of 66535124 is about 405.2132677504.

The spelling of 66535124 in words is "sixty-six million, five hundred thirty-five thousand, one hundred twenty-four".