65500021201611 has 8 divisors (see below), whose sum is σ = 87512690888704. Its totient is φ = 43577016157800.

The previous prime is 65500021201583. The next prime is 65500021201669. The reversal of 65500021201611 is 11610212000556.

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

It is not a de Polignac number, because 65500021201611 - 2⁵ = 65500021201579 is a prime.

It is a super-2 number, since 2×65500021201611² (a number of 28 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (65500021201691) 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, 22416159115 + ... + 22416162036.

It is an arithmetic number, because the mean of its divisors is an integer number (10939086361088).

Almost surely, 2^{65500021201611} is an apocalyptic number.

65500021201611 is a deficient number, since it is larger than the sum of its proper divisors (22012669687093).

65500021201611 is a wasteful number, since it uses less digits than its factorization.

65500021201611 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 44832321641.

The product of its (nonzero) digits is 3600, while the sum is 30.

The spelling of 65500021201611 in words is "sixty-five trillion, five hundred billion, twenty-one million, two hundred one thousand, six hundred eleven".