66065101611 has 16 divisors (see below), whose sum is σ = 89276482560. Its totient is φ = 43449494400.

The previous prime is 66065101547. The next prime is 66065101651. The reversal of 66065101611 is 11610156066.

It is not a de Polignac number, because 66065101611 - 2⁶ = 66065101547 is a prime.

It is not an unprimeable number, because it can be changed into a prime (66065101651) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 168586 + ... + 400688.

It is an arithmetic number, because the mean of its divisors is an integer number (5579780160).

Almost surely, 2^66065101611 is an apocalyptic number.

66065101611 is a deficient number, since it is larger than the sum of its proper divisors (23211380949).

66065101611 is a wasteful number, since it uses less digits than its factorization.

66065101611 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 233386.

The product of its (nonzero) digits is 6480, while the sum is 33.

Adding to 66065101611 its reverse (11610156066), we get a palindrome (77675257677).

The spelling of 66065101611 in words is "sixty-six billion, sixty-five million, one hundred one thousand, six hundred eleven".