65394665 has 32 divisors (see below), whose sum is σ = 96940800. Its totient is φ = 42185472.

The previous prime is 65394661. The next prime is 65394683. The reversal of 65394665 is 56649356.

It is not a de Polignac number, because 65394665 - 2² = 65394661 is a prime.

It is not an unprimeable number, because it can be changed into a prime (65394661) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 28034 + ... + 30276.

It is an arithmetic number, because the mean of its divisors is an integer number (3029400).

Almost surely, 2^65394665 is an apocalyptic number.

It is an amenable number.

65394665 is a deficient number, since it is larger than the sum of its proper divisors (31546135).

65394665 is a wasteful number, since it uses less digits than its factorization.

65394665 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2286 (or 2272 counting only the distinct ones).

The product of its digits is 583200, while the sum is 44.

The square root of 65394665 is about 8086.6967916449. The cubic root of 65394665 is about 402.8846983614.

The spelling of 65394665 in words is "sixty-five million, three hundred ninety-four thousand, six hundred sixty-five".