64516159 has 4 divisors (see below), whose sum is σ = 65400016. Its totient is φ = 63632304.

The previous prime is 64516147. The next prime is 64516163. The reversal of 64516159 is 95161546.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-64516159 is a prime.

It is a super-2 number, since 2×64516159² = 8324669544226562, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (64516129) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 441819 + ... + 441964.

It is an arithmetic number, because the mean of its divisors is an integer number (16350004).

Almost surely, 2^64516159 is an apocalyptic number.

64516159 is a deficient number, since it is larger than the sum of its proper divisors (883857).

64516159 is an equidigital number, since it uses as much as digits as its factorization.

64516159 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 883856.

The product of its digits is 32400, while the sum is 37.

The square root of 64516159 is about 8032.1951545017. The cubic root of 64516159 is about 401.0724532901.

The spelling of 64516159 in words is "sixty-four million, five hundred sixteen thousand, one hundred fifty-nine".