8101660 has 48 divisors (see below), whose sum is σ = 19857600. Its totient is φ = 2775360.

The previous prime is 8101651. The next prime is 8101661. The reversal of 8101660 is 661018.

It is a congruent number.

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 15 ways as a sum of consecutive naturals, for example, 6270 + ... + 7450.

It is an arithmetic number, because the mean of its divisors is an integer number (413700).

Almost surely, 2^8101660 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 8101660, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (9928800).

8101660 is an abundant number, since it is smaller than the sum of its proper divisors (11755940).

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

8101660 is a wasteful number, since it uses less digits than its factorization.

8101660 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1211 (or 1195 counting only the distinct ones).

The product of its (nonzero) digits is 288, while the sum is 22.

The square root of 8101660 is about 2846.3415114845. The cubic root of 8101660 is about 200.8436033307.

Adding to 8101660 its reverse (661018), we get a palindrome (8762678).

The spelling of 8101660 in words is "eight million, one hundred one thousand, six hundred sixty".