5111016660 has 36 divisors (see below), whose sum is σ = 15503417748. Its totient is φ = 1362937728.

The previous prime is 5111016623. The next prime is 5111016689. The reversal of 5111016660 is 666101115.

It can be written as a sum of positive squares in 2 ways, for example, as 3602160324 + 1508856336 = 60018^2 + 38844^2 .

It is a tau number, because it is divible by the number of its divisors (36).

It is a super-2 number, since 2×5111016660² = 52244982597595111200, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 14197089 + ... + 14197448.

It is an arithmetic number, because the mean of its divisors is an integer number (430650493).

Almost surely, 2^5111016660 is an apocalyptic number.

It is an amenable number.

5111016660 is an abundant number, since it is smaller than the sum of its proper divisors (10392401088).

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

5111016660 is a wasteful number, since it uses less digits than its factorization.

5111016660 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 28394552 (or 28394547 counting only the distinct ones).

The product of its (nonzero) digits is 1080, while the sum is 27.

The square root of 5111016660 is about 71491.3747245079. The cubic root of 5111016660 is about 1722.5391400657.

Adding to 5111016660 its reverse (666101115), we get a palindrome (5777117775).

The spelling of 5111016660 in words is "five billion, one hundred eleven million, sixteen thousand, six hundred sixty".