64557165 has 16 divisors (see below), whose sum is σ = 105811776. Its totient is φ = 33590400.

The previous prime is 64557137. The next prime is 64557167. The reversal of 64557165 is 56175546.

64557165 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 64557165 - 2⁵ = 64557133 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (64557167) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 51871 + ... + 53100.

It is an arithmetic number, because the mean of its divisors is an integer number (6613236).

Almost surely, 2^64557165 is an apocalyptic number.

It is an amenable number.

64557165 is a deficient number, since it is larger than the sum of its proper divisors (41254611).

64557165 is a wasteful number, since it uses less digits than its factorization.

64557165 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 105020.

The product of its digits is 126000, while the sum is 39.

The square root of 64557165 is about 8034.7473513484. The cubic root of 64557165 is about 401.1574082022.

The spelling of 64557165 in words is "sixty-four million, five hundred fifty-seven thousand, one hundred sixty-five".