4161660 has 48 divisors (see below), whose sum is σ = 11760000. Its totient is φ = 1099584.

The previous prime is 4161653. The next prime is 4161667. The reversal of 4161660 is 661614.

4161660 = 676² + 677² + ... + 684².

It is an interprime number because it is at equal distance from previous prime (4161653) and next prime (4161667).

It is a zygodrome in base 2.

It is a self number, because there is not a number n which added to its sum of digits gives 4161660.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4161667) 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, 8091 + ... + 8589.

It is an arithmetic number, because the mean of its divisors is an integer number (245000).

Almost surely, 2^4161660 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 4161660, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (5880000).

4161660 is an abundant number, since it is smaller than the sum of its proper divisors (7598340).

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

4161660 is a wasteful number, since it uses less digits than its factorization.

4161660 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 650 (or 648 counting only the distinct ones).

The product of its (nonzero) digits is 864, while the sum is 24.

The square root of 4161660 is about 2040.0147058293. The cubic root of 4161660 is about 160.8504198217.

The spelling of 4161660 in words is "four million, one hundred sixty-one thousand, six hundred sixty".