722865546216 has 1024 divisors, whose sum is σ = 2491554816000. Its totient is φ = 191600640000.

The previous prime is 722865546203. The next prime is 722865546241. The reversal of 722865546216 is 612645568227.

722865546216 is a `hidden beast` number, since 7 + 2 + 2 + 8 + 6 + 5 + 5 + 4 + 621 + 6 = 666.

It is a Harshad number since it is a multiple of its sum of digits (54).

It is an unprimeable number.

It is a polite number, since it can be written in 255 ways as a sum of consecutive naturals, for example, 6397040176 + ... + 6397040288.

It is an arithmetic number, because the mean of its divisors is an integer number (2433159000).

Almost surely, 2^722865546216 is an apocalyptic number.

722865546216 is a gapful number since it is divisible by the number (76) 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 722865546216, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1245777408000).

722865546216 is an abundant number, since it is smaller than the sum of its proper divisors (1768689269784).

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

722865546216 is a wasteful number, since it uses less digits than its factorization.

722865546216 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 343 (or 333 counting only the distinct ones).

The product of its digits is 9676800, while the sum is 54.

The spelling of 722865546216 in words is "seven hundred twenty-two billion, eight hundred sixty-five million, five hundred forty-six thousand, two hundred sixteen".