64895524516 has 9 divisors (see below), whose sum is σ = 113568059521. Its totient is φ = 32447507512.

The previous prime is 64895524493. The next prime is 64895524541. The reversal of 64895524516 is 61542559846.

It is a happy number.

The square root of 64895524516 is 254746.

It is a perfect power (a square), and thus also a powerful number.

It can be written as a sum of positive squares in only one way, i.e., 14945062500 + 49950462016 = 122250^2 + 223496^2 .

It is a super-2 number, since 2×64895524516² (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 2 ways as a sum of consecutive naturals, for example, 445806 + ... + 573178.

Almost surely, 2^64895524516 is an apocalyptic number.

64895524516 is the 254746-th square number.

It is an amenable number.

64895524516 is a deficient number, since it is larger than the sum of its proper divisors (48672535005).

64895524516 is an frugal number, since it uses more digits than its factorization.

64895524516 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 254750 (or 127375 counting only the distinct ones).

The product of its digits is 10368000, while the sum is 55.

The spelling of 64895524516 in words is "sixty-four billion, eight hundred ninety-five million, five hundred twenty-four thousand, five hundred sixteen".