65964465 has 48 divisors (see below), whose sum is σ = 131459328. Its totient is φ = 29973888.

The previous prime is 65964463. The next prime is 65964491. The reversal of 65964465 is 56446956.

It is not a de Polignac number, because 65964465 - 2¹ = 65964463 is a prime.

It is a Smith number, since the sum of its digits (45) coincides with the sum of the digits of its prime factors.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a self number, because there is not a number n which added to its sum of digits gives 65964465.

It is not an unprimeable number, because it can be changed into a prime (65964463) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 61524 + ... + 62586.

It is an arithmetic number, because the mean of its divisors is an integer number (2738736).

Almost surely, 2^65964465 is an apocalyptic number.

It is an amenable number.

65964465 is a deficient number, since it is larger than the sum of its proper divisors (65494863).

65964465 is a wasteful number, since it uses less digits than its factorization.

65964465 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1278 (or 1275 counting only the distinct ones).

The product of its digits is 777600, while the sum is 45.

The square root of 65964465 is about 8121.8510821118. The cubic root of 65964465 is about 404.0514610296.

The spelling of 65964465 in words is "sixty-five million, nine hundred sixty-four thousand, four hundred sixty-five".