722173080216 has 64 divisors (see below), whose sum is σ = 2072441422080. Its totient is φ = 205426189440.

The previous prime is 722173080149. The next prime is 722173080221. The reversal of 722173080216 is 612080371227.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 9430255 + ... + 9506526.

It is an arithmetic number, because the mean of its divisors is an integer number (32381897220).

Almost surely, 2^722173080216 is an apocalyptic number.

It is an amenable number.

722173080216 is an abundant number, since it is smaller than the sum of its proper divisors (1350268341864).

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

722173080216 is a wasteful number, since it uses less digits than its factorization.

722173080216 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18937024 (or 18937020 counting only the distinct ones).

The product of its (nonzero) digits is 56448, while the sum is 39.

The spelling of 722173080216 in words is "seven hundred twenty-two billion, one hundred seventy-three million, eighty thousand, two hundred sixteen".