66224374 has 8 divisors (see below), whose sum is σ = 99383760. Its totient is φ = 33096456.

The previous prime is 66224369. The next prime is 66224377. The reversal of 66224374 is 47342266.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (66224377) 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, 1609 + ... + 11620.

It is an arithmetic number, because the mean of its divisors is an integer number (12422970).

Almost surely, 2^66224374 is an apocalyptic number.

66224374 is a deficient number, since it is larger than the sum of its proper divisors (33159386).

66224374 is a wasteful number, since it uses less digits than its factorization.

66224374 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15734.

The product of its digits is 48384, while the sum is 34.

The square root of 66224374 is about 8137.8359531266. The cubic root of 66224374 is about 404.5814382211.

The spelling of 66224374 in words is "sixty-six million, two hundred twenty-four thousand, three hundred seventy-four".