5601660065 has 8 divisors (see below), whose sum is σ = 6723696168. Its totient is φ = 4480192000.

The previous prime is 5601660059. The next prime is 5601660067. The reversal of 5601660065 is 5600661065.

It can be written as a sum of positive squares in 4 ways, for example, as 2430481 + 5599229584 = 1559^2 + 74828^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 5601660065 - 2¹⁴ = 5601643681 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (5601660067) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 120002 + ... + 160011.

It is an arithmetic number, because the mean of its divisors is an integer number (840462021).

Almost surely, 2^5601660065 is an apocalyptic number.

It is an amenable number.

5601660065 is a deficient number, since it is larger than the sum of its proper divisors (1122036103).

5601660065 is a wasteful number, since it uses less digits than its factorization.

5601660065 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 284019.

The product of its (nonzero) digits is 32400, while the sum is 35.

The square root of 5601660065 is about 74844.2386894275. The cubic root of 5601660065 is about 1775.9834597628.

The spelling of 5601660065 in words is "five billion, six hundred one million, six hundred sixty thousand, sixty-five".