722352016512 has 576 divisors, whose sum is σ = 2504001427200. Its totient is φ = 199090483200.

The previous prime is 722352016489. The next prime is 722352016571. The reversal of 722352016512 is 215610253227.

722352016512 is a `hidden beast` number, since 72 + 2 + 3 + 520 + 1 + 65 + 1 + 2 = 666.

It is a tau number, because it is divible by the number of its divisors (576).

It is a super-2 number, since 2×722352016512² (a number of 25 digits) contains 22 as substring.

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 71 ways as a sum of consecutive naturals, for example, 890692587 + ... + 890693397.

It is an arithmetic number, because the mean of its divisors is an integer number (4347224700).

Almost surely, 2^722352016512 is an apocalyptic number.

722352016512 is a gapful number since it is divisible by the number (72) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 722352016512, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1252000713600).

722352016512 is an abundant number, since it is smaller than the sum of its proper divisors (1781649410688).

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

722352016512 is a wasteful number, since it uses less digits than its factorization.

722352016512 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1385 (or 1363 counting only the distinct ones).

The product of its (nonzero) digits is 50400, while the sum is 36.

Adding to 722352016512 its reverse (215610253227), we get a palindrome (937962269739).

The spelling of 722352016512 in words is "seven hundred twenty-two billion, three hundred fifty-two million, sixteen thousand, five hundred twelve".