64486565 has 16 divisors (see below), whose sum is σ = 90913536. Its totient is φ = 43291200.

The previous prime is 64486553. The next prime is 64486573. The reversal of 64486565 is 56568446.

It is not a de Polignac number, because 64486565 - 2⁸ = 64486309 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 15 ways as a sum of consecutive naturals, for example, 44381 + ... + 45810.

It is an arithmetic number, because the mean of its divisors is an integer number (5682096).

Almost surely, 2^64486565 is an apocalyptic number.

64486565 is a gapful number since it is divisible by the number (65) formed by its first and last digit.

It is an amenable number.

64486565 is a deficient number, since it is larger than the sum of its proper divisors (26426971).

64486565 is a wasteful number, since it uses less digits than its factorization.

64486565 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 90220.

The product of its digits is 691200, while the sum is 44.

The square root of 64486565 is about 8030.3527319788. The cubic root of 64486565 is about 401.0111190255.

The spelling of 64486565 in words is "sixty-four million, four hundred eighty-six thousand, five hundred sixty-five".