71247213360 has 160 divisors (see below), whose sum is σ = 247340359680. Its totient is φ = 18849583872.

The previous prime is 71247213347. The next prime is 71247213371. The reversal of 71247213360 is 6331274217.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 144459 + ... + 404181.

It is an arithmetic number, because the mean of its divisors is an integer number (1545877248).

Almost surely, 2^71247213360 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 71247213360, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (123670179840).

71247213360 is an abundant number, since it is smaller than the sum of its proper divisors (176093146320).

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

71247213360 is a wasteful number, since it uses less digits than its factorization.

71247213360 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 259872 (or 259860 counting only the distinct ones).

The product of its (nonzero) digits is 42336, while the sum is 36.

Adding to 71247213360 its reverse (6331274217), we get a palindrome (77578487577).

The spelling of 71247213360 in words is "seventy-one billion, two hundred forty-seven million, two hundred thirteen thousand, three hundred sixty".