722312231660 has 24 divisors (see below), whose sum is σ = 1517450405856. Its totient is φ = 288811612800.

The previous prime is 722312231629. The next prime is 722312231677. The reversal of 722312231660 is 66132213227.

It is a self number, because there is not a number n which added to its sum of digits gives 722312231660.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 7027697 + ... + 7129736.

It is an arithmetic number, because the mean of its divisors is an integer number (63227100244).

Almost surely, 2^722312231660 is an apocalyptic number.

It is an amenable number.

722312231660 is an abundant number, since it is smaller than the sum of its proper divisors (795138174196).

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

722312231660 is a wasteful number, since it uses less digits than its factorization.

722312231660 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14159993 (or 14159991 counting only the distinct ones).

The product of its (nonzero) digits is 36288, while the sum is 35.

Adding to 722312231660 its reverse (66132213227), we get a palindrome (788444444887).

The spelling of 722312231660 in words is "seven hundred twenty-two billion, three hundred twelve million, two hundred thirty-one thousand, six hundred sixty".