65641412 has 6 divisors (see below), whose sum is σ = 114872478. Its totient is φ = 32820704.

The previous prime is 65641399. The next prime is 65641427. The reversal of 65641412 is 21414656.

It can be written as a sum of positive squares in only one way, i.e., 48219136 + 17422276 = 6944^2 + 4174^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 8205173 + ... + 8205180.

It is an arithmetic number, because the mean of its divisors is an integer number (19145413).

Almost surely, 2^65641412 is an apocalyptic number.

It is an amenable number.

65641412 is a deficient number, since it is larger than the sum of its proper divisors (49231066).

65641412 is a wasteful number, since it uses less digits than its factorization.

65641412 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16410357 (or 16410355 counting only the distinct ones).

The product of its digits is 5760, while the sum is 29.

The square root of 65641412 is about 8101.9387803167. The cubic root of 65641412 is about 403.3907835809.

The spelling of 65641412 in words is "sixty-five million, six hundred forty-one thousand, four hundred twelve".