516524221066 has 12 divisors (see below), whose sum is σ = 901282059378. Its totient is φ = 221367523272.

The previous prime is 516524221049. The next prime is 516524221123. The reversal of 516524221066 is 660122425615.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 402236276841 + 114287944225 = 634221^2 + 338065^2 .

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 5 ways as a sum of consecutive naturals, for example, 2635327561 + ... + 2635327756.

Almost surely, 2^516524221066 is an apocalyptic number.

516524221066 is a deficient number, since it is larger than the sum of its proper divisors (384757838312).

516524221066 is a wasteful number, since it uses less digits than its factorization.

516524221066 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5270655333 (or 5270655326 counting only the distinct ones).

The product of its (nonzero) digits is 172800, while the sum is 40.

The spelling of 516524221066 in words is "five hundred sixteen billion, five hundred twenty-four million, two hundred twenty-one thousand, sixty-six".