66242302 has 16 divisors (see below), whose sum is σ = 120238560. Its totient is φ = 26719488.

The previous prime is 66242291. The next prime is 66242327. The reversal of 66242302 is 20324266.

It is a happy number.

It is a congruent number.

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, 138927 + ... + 139402.

It is an arithmetic number, because the mean of its divisors is an integer number (7514910).

Almost surely, 2^66242302 is an apocalyptic number.

66242302 is a deficient number, since it is larger than the sum of its proper divisors (53996258).

66242302 is a wasteful number, since it uses less digits than its factorization.

66242302 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 278355.

The product of its (nonzero) digits is 3456, while the sum is 25.

The square root of 66242302 is about 8138.9373999313. The cubic root of 66242302 is about 404.6179438215.

Adding to 66242302 its reverse (20324266), we get a palindrome (86566568).

The spelling of 66242302 in words is "sixty-six million, two hundred forty-two thousand, three hundred two".