8101665 has 48 divisors (see below), whose sum is σ = 16511040. Its totient is φ = 3623040.

The previous prime is 8101661. The next prime is 8101669. The reversal of 8101665 is 5661018.

It is an interprime number because it is at equal distance from previous prime (8101661) and next prime (8101669).

It is not a de Polignac number, because 8101665 - 2² = 8101661 is a prime.

It is not an unprimeable number, because it can be changed into a prime (8101661) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 5806 + ... + 7064.

It is an arithmetic number, because the mean of its divisors is an integer number (343980).

Almost surely, 2^8101665 is an apocalyptic number.

It is an amenable number.

8101665 is an abundant number, since it is smaller than the sum of its proper divisors (8409375).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

8101665 is a wasteful number, since it uses less digits than its factorization.

8101665 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1294 (or 1291 counting only the distinct ones).

The product of its (nonzero) digits is 1440, while the sum is 27.

The square root of 8101665 is about 2846.3423898049. The cubic root of 8101665 is about 200.8436446481.

The spelling of 8101665 in words is "eight million, one hundred one thousand, six hundred sixty-five".