722216615040 has 512 divisors, whose sum is σ = 2611488211200. Its totient is φ = 188581478400.

The previous prime is 722216615027. The next prime is 722216615069. The reversal of 722216615040 is 40516612227.

It is a happy number.

722216615040 is a `hidden beast` number, since 7 + 2 + 22 + 16 + 615 + 0 + 4 + 0 = 666.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a junction number, because it is equal to n+sod(n) for n = 722216614986 and 722216615004.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 254031859 + ... + 254034701.

Almost surely, 2^722216615040 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 722216615040, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1305744105600).

722216615040 is an abundant number, since it is smaller than the sum of its proper divisors (1889271596160).

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

722216615040 is a wasteful number, since it uses less digits than its factorization.

722216615040 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3173 (or 3155 counting only the distinct ones).

The product of its (nonzero) digits is 40320, while the sum is 36.

The spelling of 722216615040 in words is "seven hundred twenty-two billion, two hundred sixteen million, six hundred fifteen thousand, forty".