71730718022220 has 48 divisors (see below), whose sum is σ = 203265841927680. Its totient is φ = 18897731333056.

The previous prime is 71730718022177. The next prime is 71730718022237. The reversal of 71730718022220 is 2222081703717.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 7201874340 + ... + 7201884299.

It is an arithmetic number, because the mean of its divisors is an integer number (4234705040160).

Almost surely, 2^{71730718022220} is an apocalyptic number.

It is an amenable number.

71730718022220 is an abundant number, since it is smaller than the sum of its proper divisors (131535123905460).

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

71730718022220 is a wasteful number, since it uses less digits than its factorization.

71730718022220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14403758734 (or 14403758732 counting only the distinct ones).

The product of its (nonzero) digits is 131712, while the sum is 42.

Adding to 71730718022220 its reverse (2222081703717), we get a palindrome (73952799725937).

The spelling of 71730718022220 in words is "seventy-one trillion, seven hundred thirty billion, seven hundred eighteen million, twenty-two thousand, two hundred twenty".