5111586661 has 8 divisors (see below), whose sum is σ = 5400357120. Its totient is φ = 4830316848.

The previous prime is 5111586653. The next prime is 5111586721. The reversal of 5111586661 is 1666851115.

It is a happy number.

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

It is a cyclic number.

It is not a de Polignac number, because 5111586661 - 2³ = 5111586653 is a prime.

It is a super-2 number, since 2×5111586661² = 52256636385826257842, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (5111596661) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1873761 + ... + 1876486.

It is an arithmetic number, because the mean of its divisors is an integer number (675044640).

Almost surely, 2^5111586661 is an apocalyptic number.

It is an amenable number.

5111586661 is a deficient number, since it is larger than the sum of its proper divisors (288770459).

5111586661 is a wasteful number, since it uses less digits than its factorization.

5111586661 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3750323.

The product of its digits is 43200, while the sum is 40.

The square root of 5111586661 is about 71495.3611152500. The cubic root of 5111586661 is about 1722.6031725013.

The spelling of 5111586661 in words is "five billion, one hundred eleven million, five hundred eighty-six thousand, six hundred sixty-one".