6516000061066 has 16 divisors (see below), whose sum is σ = 9929868993000. Its totient is φ = 3206444937408.

The previous prime is 6516000061019. The next prime is 6516000061127. The reversal of 6516000061066 is 6601600006156.

It can be written as a sum of positive squares in 4 ways, for example, as 6380822508841 + 135177552225 = 2526029^2 + 367665^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 100269225 + ... + 100334188.

Almost surely, 2^{6516000061066} is an apocalyptic number.

6516000061066 is a deficient number, since it is larger than the sum of its proper divisors (3413868931934).

6516000061066 is a wasteful number, since it uses less digits than its factorization.

6516000061066 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 200603673.

The product of its (nonzero) digits is 38880, while the sum is 37.

The spelling of 6516000061066 in words is "six trillion, five hundred sixteen billion, sixty-one thousand, sixty-six".