65666110101 has 8 divisors (see below), whose sum is σ = 87887722560. Its totient is φ = 43610952192.

The previous prime is 65666110087. The next prime is 65666110123. The reversal of 65666110101 is 10101166656.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 65666110101 - 2¹⁰ = 65666109077 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (65666110151) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 41612716 + ... + 41614293.

It is an arithmetic number, because the mean of its divisors is an integer number (10985965320).

Almost surely, 2^65666110101 is an apocalyptic number.

It is an amenable number.

65666110101 is a deficient number, since it is larger than the sum of its proper divisors (22221612459).

65666110101 is a wasteful number, since it uses less digits than its factorization.

65666110101 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 83227275.

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

Adding to 65666110101 its reverse (10101166656), we get a palindrome (75767276757).

The spelling of 65666110101 in words is "sixty-five billion, six hundred sixty-six million, one hundred ten thousand, one hundred one".