66553124 has 24 divisors (see below), whose sum is σ = 133744800. Its totient is φ = 28658880.

The previous prime is 66553117. The next prime is 66553129. The reversal of 66553124 is 42135566.

It is not an unprimeable number, because it can be changed into a prime (66553129) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 38969 + ... + 40640.

It is an arithmetic number, because the mean of its divisors is an integer number (5572700).

Almost surely, 2^66553124 is an apocalyptic number.

It is an amenable number.

66553124 is an abundant number, since it is smaller than the sum of its proper divisors (67191676).

66553124 is a wasteful number, since it uses less digits than its factorization.

66553124 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 79643 (or 79641 counting only the distinct ones).

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

The square root of 66553124 is about 8158.0098063192. The cubic root of 66553124 is about 405.2498057509.

It can be divided in two parts, 6655 and 3124, that added together give a palindrome (9779).

The spelling of 66553124 in words is "sixty-six million, five hundred fifty-three thousand, one hundred twenty-four".