72271470660 has 96 divisors (see below), whose sum is σ = 214419985920. Its totient is φ = 18125488128.

The previous prime is 72271470637. The next prime is 72271470701. The reversal of 72271470660 is 6607417227.

It is a super-3 number, since 3×72271470660³ (a number of 34 digits) contains 333 as substring.

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, 1412037 + ... + 1462323.

It is an arithmetic number, because the mean of its divisors is an integer number (2233541520).

Almost surely, 2^72271470660 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 72271470660, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (107209992960).

72271470660 is an abundant number, since it is smaller than the sum of its proper divisors (142148515260).

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

72271470660 is a wasteful number, since it uses less digits than its factorization.

72271470660 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 51725 (or 51723 counting only the distinct ones).

The product of its (nonzero) digits is 197568, while the sum is 42.

Adding to 72271470660 its reverse (6607417227), we get a palindrome (78878887887).

The spelling of 72271470660 in words is "seventy-two billion, two hundred seventy-one million, four hundred seventy thousand, six hundred sixty".