5200181665 has 32 divisors (see below), whose sum is σ = 7487594496. Its totient is φ = 3389791680.

The previous prime is 5200181641. The next prime is 5200181669. The reversal of 5200181665 is 5661810025.

It is a happy number.

It is not a de Polignac number, because 5200181665 - 2¹¹ = 5200179617 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 5200181665.

It is not an unprimeable number, because it can be changed into a prime (5200181669) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 111400 + ... + 151030.

It is an arithmetic number, because the mean of its divisors is an integer number (233987328).

Almost surely, 2^5200181665 is an apocalyptic number.

It is an amenable number.

5200181665 is a deficient number, since it is larger than the sum of its proper divisors (2287412831).

5200181665 is a wasteful number, since it uses less digits than its factorization.

5200181665 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 39829.

The product of its (nonzero) digits is 14400, while the sum is 34.

The square root of 5200181665 is about 72112.2851184179. The cubic root of 5200181665 is about 1732.4983854888.

The spelling of 5200181665 in words is "five billion, two hundred million, one hundred eighty-one thousand, six hundred sixty-five".