64365065 has 32 divisors (see below), whose sum is σ = 85708800. Its totient is φ = 46206720.

The previous prime is 64365061. The next prime is 64365073. The reversal of 64365065 is 56056346.

It is not a de Polignac number, because 64365065 - 2² = 64365061 is a prime.

It is not an unprimeable number, because it can be changed into a prime (64365061) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 167864 + ... + 168246.

It is an arithmetic number, because the mean of its divisors is an integer number (2678400).

Almost surely, 2^64365065 is an apocalyptic number.

It is an amenable number.

64365065 is a deficient number, since it is larger than the sum of its proper divisors (21343735).

64365065 is a wasteful number, since it uses less digits than its factorization.

64365065 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 497.

The product of its (nonzero) digits is 64800, while the sum is 35.

The square root of 64365065 is about 8022.7841177487. The cubic root of 64365065 is about 400.7591105499.

The spelling of 64365065 in words is "sixty-four million, three hundred sixty-five thousand, sixty-five".