66342306 has 16 divisors (see below), whose sum is σ = 132921504. Its totient is φ = 22074624.

The previous prime is 66342301. The next prime is 66342317. The reversal of 66342306 is 60324366.

It is not an unprimeable number, because it can be changed into a prime (66342301) 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, 6120 + ... + 13043.

It is an arithmetic number, because the mean of its divisors is an integer number (8307594).

Almost surely, 2^66342306 is an apocalyptic number.

66342306 is an abundant number, since it is smaller than the sum of its proper divisors (66579198).

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

66342306 is a wasteful number, since it uses less digits than its factorization.

66342306 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19745.

The product of its (nonzero) digits is 15552, while the sum is 30.

The square root of 66342306 is about 8145.0786368211. The cubic root of 66342306 is about 404.8214546022.

The spelling of 66342306 in words is "sixty-six million, three hundred forty-two thousand, three hundred six".