65966146 has 8 divisors (see below), whose sum is σ = 99857340. Its totient is φ = 32680368.

The previous prime is 65966113. The next prime is 65966149. The reversal of 65966146 is 64166956.

It can be written as a sum of positive squares in 2 ways, for example, as 63441225 + 2524921 = 7965^2 + 1589^2 .

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 (65966149) 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, 151081 + ... + 151516.

Almost surely, 2^65966146 is an apocalyptic number.

65966146 is a deficient number, since it is larger than the sum of its proper divisors (33891194).

65966146 is a wasteful number, since it uses less digits than its factorization.

65966146 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 302708.

The product of its digits is 233280, while the sum is 43.

The square root of 65966146 is about 8121.9545677134. The cubic root of 65966146 is about 404.0548932044.

The spelling of 65966146 in words is "sixty-five million, nine hundred sixty-six thousand, one hundred forty-six".