71163152420 has 12 divisors (see below), whose sum is σ = 149442620124. Its totient is φ = 28465260960.

The previous prime is 71163152407. The next prime is 71163152429. The reversal of 71163152420 is 2425136117.

It can be written as a sum of positive squares in 2 ways, for example, as 24966528064 + 46196624356 = 158008^2 + 214934^2 .

It is not an unprimeable number, because it can be changed into a prime (71163152429) 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 3 ways as a sum of consecutive naturals, for example, 1779078791 + ... + 1779078830.

It is an arithmetic number, because the mean of its divisors is an integer number (12453551677).

Almost surely, 2^71163152420 is an apocalyptic number.

It is an amenable number.

71163152420 is an abundant number, since it is smaller than the sum of its proper divisors (78279467704).

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

71163152420 is a wasteful number, since it uses less digits than its factorization.

71163152420 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3558157630 (or 3558157628 counting only the distinct ones).

The product of its (nonzero) digits is 10080, while the sum is 32.

Adding to 71163152420 its reverse (2425136117), we get a palindrome (73588288537).

The spelling of 71163152420 in words is "seventy-one billion, one hundred sixty-three million, one hundred fifty-two thousand, four hundred twenty".