816371309316 has 24 divisors (see below), whose sum is σ = 1970551437120. Its totient is φ = 262740191392.

The previous prime is 816371309311. The next prime is 816371309339. The reversal of 816371309316 is 613903173618.

It is a super-2 number, since 2×816371309316² (a number of 25 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (816371309311) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1172946936 + ... + 1172947631.

It is an arithmetic number, because the mean of its divisors is an integer number (82106309880).

Almost surely, 2^816371309316 is an apocalyptic number.

It is an amenable number.

816371309316 is an abundant number, since it is smaller than the sum of its proper divisors (1154180127804).

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

816371309316 is a wasteful number, since it uses less digits than its factorization.

816371309316 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2345894603 (or 2345894601 counting only the distinct ones).

The product of its (nonzero) digits is 489888, while the sum is 48.

The spelling of 816371309316 in words is "eight hundred sixteen billion, three hundred seventy-one million, three hundred nine thousand, three hundred sixteen".