8001660 has 48 divisors (see below), whose sum is σ = 23587200. Its totient is φ = 2021184.

The previous prime is 8001659. The next prime is 8001661. The reversal of 8001660 is 661008.

8001660 is digitally balanced in base 4, because in such base it contains all the possibile digits an equal number of times.

It is an interprime number because it is at equal distance from previous prime (8001659) and next prime (8001661).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (8001661) 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, 2370 + ... + 4649.

It is an arithmetic number, because the mean of its divisors is an integer number (491400).

Almost surely, 2^8001660 is an apocalyptic number.

It is an amenable number.

8001660 is an abundant number, since it is smaller than the sum of its proper divisors (15585540).

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

8001660 is a wasteful number, since it uses less digits than its factorization.

8001660 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7050 (or 7048 counting only the distinct ones).

The product of its (nonzero) digits is 288, while the sum is 21.

The square root of 8001660 is about 2828.7205588393. The cubic root of 8001660 is about 200.0138323766.

Adding to 8001660 its reverse (661008), we get a palindrome (8662668).

The spelling of 8001660 in words is "eight million, one thousand, six hundred sixty".