816305550272 has 42 divisors (see below), whose sum is σ = 1690356642648. Its totient is φ = 390390423808.

The previous prime is 816305550257. The next prime is 816305550371. The reversal of 816305550272 is 272055503618.

816305550272 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 34652354 + ... + 34675902.

Almost surely, 2^816305550272 is an apocalyptic number.

It is an amenable number.

816305550272 is an abundant number, since it is smaller than the sum of its proper divisors (874051092376).

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

816305550272 is an frugal number, since it uses more digits than its factorization.

816305550272 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 47133 (or 23574 counting only the distinct ones).

The product of its (nonzero) digits is 504000, while the sum is 44.

The spelling of 816305550272 in words is "eight hundred sixteen billion, three hundred five million, five hundred fifty thousand, two hundred seventy-two".