66151151565611 has 12 divisors (see below), whose sum is σ = 77460951105360. Its totient is φ = 56325483824400.

The previous prime is 66151151565523. The next prime is 66151151565647. The reversal of 66151151565611 is 11656515115166.

It is not a de Polignac number, because 66151151565611 - 2³⁰ = 66150077823787 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 66151151565611.

It is not an unprimeable number, because it can be changed into a prime (66151151565211) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 4470269096 + ... + 4470283893.

It is an arithmetic number, because the mean of its divisors is an integer number (6455079258780).

Almost surely, 2^{66151151565611} is an apocalyptic number.

66151151565611 is a deficient number, since it is larger than the sum of its proper divisors (11309799539749).

66151151565611 is a wasteful number, since it uses less digits than its factorization.

66151151565611 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8940553154 (or 8940553147 counting only the distinct ones).

The product of its digits is 810000, while the sum is 50.

The spelling of 66151151565611 in words is "sixty-six trillion, one hundred fifty-one billion, one hundred fifty-one million, five hundred sixty-five thousand, six hundred eleven".