722437665320 has 64 divisors (see below), whose sum is σ = 1857912837120. Its totient is φ = 247664116224.

The previous prime is 722437665319. The next prime is 722437665329. The reversal of 722437665320 is 23566734227.

It is not an unprimeable number, because it can be changed into a prime (722437665329) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2336084 + ... + 2627196.

It is an arithmetic number, because the mean of its divisors is an integer number (29029888080).

Almost surely, 2^722437665320 is an apocalyptic number.

722437665320 is a gapful number since it is divisible by the number (70) formed by its first and last digit.

It is an amenable number.

722437665320 is an abundant number, since it is smaller than the sum of its proper divisors (1135475171800).

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

722437665320 is a wasteful number, since it uses less digits than its factorization.

722437665320 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 299994 (or 299990 counting only the distinct ones).

The product of its (nonzero) digits is 2540160, while the sum is 47.

The spelling of 722437665320 in words is "seven hundred twenty-two billion, four hundred thirty-seven million, six hundred sixty-five thousand, three hundred twenty".