2175065660 has 96 divisors (see below), whose sum is σ = 4934260800. Its totient is φ = 802897920.

The previous prime is 2175065647. The next prime is 2175065677. The reversal of 2175065660 is 665605712.

It is a super-2 number, since 2×2175065660² = 9461821250622471200, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (38).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 2468420 + ... + 2469300.

It is an arithmetic number, because the mean of its divisors is an integer number (51398550).

Almost surely, 2^2175065660 is an apocalyptic number.

2175065660 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 2175065660, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2467130400).

2175065660 is an abundant number, since it is smaller than the sum of its proper divisors (2759195140).

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

2175065660 is a wasteful number, since it uses less digits than its factorization.

2175065660 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1071 (or 1069 counting only the distinct ones).

The product of its (nonzero) digits is 75600, while the sum is 38.

The square root of 2175065660 is about 46637.5992092217. The cubic root of 2175065660 is about 1295.6592222127.

The spelling of 2175065660 in words is "two billion, one hundred seventy-five million, sixty-five thousand, six hundred sixty".