66366146 has 16 divisors (see below), whose sum is σ = 124113600. Its totient is φ = 25856880.

The previous prime is 66366137. The next prime is 66366149. The reversal of 66366146 is 64166366.

It is not an unprimeable number, because it can be changed into a prime (66366149) 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, 215321 + ... + 215628.

It is an arithmetic number, because the mean of its divisors is an integer number (7757100).

Almost surely, 2^66366146 is an apocalyptic number.

66366146 is a deficient number, since it is larger than the sum of its proper divisors (57747454).

66366146 is a wasteful number, since it uses less digits than its factorization.

66366146 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 430969.

The product of its digits is 93312, while the sum is 38.

The square root of 66366146 is about 8146.5419657668. The cubic root of 66366146 is about 404.8699394392.

The spelling of 66366146 in words is "sixty-six million, three hundred sixty-six thousand, one hundred forty-six".