66229874 has 8 divisors (see below), whose sum is σ = 99388380. Its totient is φ = 33100416.

The previous prime is 66229873. The next prime is 66229879. The reversal of 66229874 is 47892266.

It can be written as a sum of positive squares in 2 ways, for example, as 60730849 + 5499025 = 7793^2 + 2345^2 .

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

It is not an unprimeable number, because it can be changed into a prime (66229873) 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, 179 + ... + 11510.

Almost surely, 2^66229874 is an apocalyptic number.

66229874 is a deficient number, since it is larger than the sum of its proper divisors (33158506).

66229874 is a wasteful number, since it uses less digits than its factorization.

66229874 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14524.

The product of its digits is 290304, while the sum is 44.

The square root of 66229874 is about 8138.1738737877. The cubic root of 66229874 is about 404.5926382078.

The spelling of 66229874 in words is "sixty-six million, two hundred twenty-nine thousand, eight hundred seventy-four".