66424368 has 40 divisors (see below), whose sum is σ = 179059968. Its totient is φ = 21178432.

The previous prime is 66424357. The next prime is 66424381. The reversal of 66424368 is 86342466.

It is a nude number because it is divisible by every one of its digits.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 28980 + ... + 31187.

Almost surely, 2^66424368 is an apocalyptic number.

It is an amenable number.

66424368 is an abundant number, since it is smaller than the sum of its proper divisors (112635600).

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

66424368 is a wasteful number, since it uses less digits than its factorization.

66424368 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 60201 (or 60195 counting only the distinct ones).

The product of its digits is 165888, while the sum is 39.

The square root of 66424368 is about 8150.1146004213. The cubic root of 66424368 is about 404.9883002260.

The spelling of 66424368 in words is "sixty-six million, four hundred twenty-four thousand, three hundred sixty-eight".