5111165601 has 12 divisors (see below), whose sum is σ = 7454473728. Its totient is φ = 3374361144.

The previous prime is 5111165599. The next prime is 5111165669. The reversal of 5111165601 is 1065611115.

5111165601 is a `hidden beast` number, since 5 + 1 + 1 + 1 + 1 + 656 + 0 + 1 = 666.

It is not a de Polignac number, because 5111165601 - 2¹ = 5111165599 is a prime.

It is a super-2 number, since 2×5111165601² = 52248027601691382402, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (5111165671) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 2755905 + ... + 2757758.

It is an arithmetic number, because the mean of its divisors is an integer number (621206144).

Almost surely, 2^5111165601 is an apocalyptic number.

It is an amenable number.

5111165601 is a deficient number, since it is larger than the sum of its proper divisors (2343308127).

5111165601 is a wasteful number, since it uses less digits than its factorization.

5111165601 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5513772 (or 5513769 counting only the distinct ones).

The product of its (nonzero) digits is 900, while the sum is 27.

The square root of 5111165601 is about 71492.4163880338. The cubic root of 5111165601 is about 1722.5558721712. Note that the first 3 decimals are identical.

Adding to 5111165601 its reverse (1065611115), we get a palindrome (6176776716).

The spelling of 5111165601 in words is "five billion, one hundred eleven million, one hundred sixty-five thousand, six hundred one".