64036565 has 8 divisors (see below), whose sum is σ = 76889088. Its totient is φ = 51199120.

The previous prime is 64036543. The next prime is 64036571. The reversal of 64036565 is 56563046.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 64036565 - 2²⁴ = 47259349 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 10484 + ... + 15426.

It is an arithmetic number, because the mean of its divisors is an integer number (9611136).

Almost surely, 2^64036565 is an apocalyptic number.

It is an amenable number.

64036565 is a deficient number, since it is larger than the sum of its proper divisors (12852523).

64036565 is a wasteful number, since it uses less digits than its factorization.

64036565 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7539.

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

The square root of 64036565 is about 8002.2849861774. The cubic root of 64036565 is about 400.0761625806.

The spelling of 64036565 in words is "sixty-four million, thirty-six thousand, five hundred sixty-five".