65746665 has 24 divisors (see below), whose sum is σ = 114211968. Its totient is φ = 34987680.

The previous prime is 65746663. The next prime is 65746679. The reversal of 65746665 is 56664756.

It is not a de Polignac number, because 65746665 - 2¹ = 65746663 is a prime.

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 65746665.

It is not an unprimeable number, because it can be changed into a prime (65746661) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 23280 + ... + 25950.

It is an arithmetic number, because the mean of its divisors is an integer number (4758832).

Almost surely, 2^65746665 is an apocalyptic number.

It is an amenable number.

65746665 is a deficient number, since it is larger than the sum of its proper divisors (48465303).

65746665 is a wasteful number, since it uses less digits than its factorization.

65746665 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3229 (or 3226 counting only the distinct ones).

The product of its digits is 907200, while the sum is 45.

The square root of 65746665 is about 8108.4317225959. The cubic root of 65746665 is about 403.6062746651.

The spelling of 65746665 in words is "sixty-five million, seven hundred forty-six thousand, six hundred sixty-five".