7166139843 has 8 divisors (see below), whose sum is σ = 9560329408. Its totient is φ = 4774688424.

The previous prime is 7166139817. The next prime is 7166139913. The reversal of 7166139843 is 3489316617.

It is a happy number.

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

It is not a de Polignac number, because 7166139843 - 2⁵ = 7166139811 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 7166139792 and 7166139801.

It is not an unprimeable number, because it can be changed into a prime (7166139143) 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, 678421 + ... + 688902.

It is an arithmetic number, because the mean of its divisors is an integer number (1195041176).

Almost surely, 2^7166139843 is an apocalyptic number.

7166139843 is a deficient number, since it is larger than the sum of its proper divisors (2394189565).

7166139843 is a wasteful number, since it uses less digits than its factorization.

7166139843 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1369073.

The product of its digits is 653184, while the sum is 48.

The square root of 7166139843 is about 84653.0557215745. The cubic root of 7166139843 is about 1927.9470095964.

The spelling of 7166139843 in words is "seven billion, one hundred sixty-six million, one hundred thirty-nine thousand, eight hundred forty-three".