102161516611 has 16 divisors (see below), whose sum is σ = 129529025280. Its totient is φ = 78257112480.

The previous prime is 102161516599. The next prime is 102161516617. The reversal of 102161516611 is 116615161201.

It is a cyclic number.

It is not a de Polignac number, because 102161516611 - 2¹⁵ = 102161483843 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (102161516617) 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, 11239296 + ... + 11248381.

It is an arithmetic number, because the mean of its divisors is an integer number (8095564080).

Almost surely, 2^102161516611 is an apocalyptic number.

102161516611 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

102161516611 is a deficient number, since it is larger than the sum of its proper divisors (27367508669).

102161516611 is a wasteful number, since it uses less digits than its factorization.

102161516611 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22487754.

The product of its (nonzero) digits is 2160, while the sum is 31.

Adding to 102161516611 its reverse (116615161201), we get a palindrome (218776677812).

The spelling of 102161516611 in words is "one hundred two billion, one hundred sixty-one million, five hundred sixteen thousand, six hundred eleven".