8100616665 has 16 divisors (see below), whose sum is σ = 13379083776. Its totient is φ = 4180963200.

The previous prime is 8100616553. The next prime is 8100616673. The reversal of 8100616665 is 5666160018.

It is not a de Polignac number, because 8100616665 - 2⁸ = 8100616409 is a prime.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 8709876 + ... + 8710805.

It is an arithmetic number, because the mean of its divisors is an integer number (836192736).

Almost surely, 2^8100616665 is an apocalyptic number.

It is an amenable number.

8100616665 is a deficient number, since it is larger than the sum of its proper divisors (5278467111).

8100616665 is a wasteful number, since it uses less digits than its factorization.

8100616665 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17420720.

The product of its (nonzero) digits is 51840, while the sum is 39.

The square root of 8100616665 is about 90003.4258514641. The cubic root of 8100616665 is about 2008.3498138755.

The spelling of 8100616665 in words is "eight billion, one hundred million, six hundred sixteen thousand, six hundred sixty-five".