816182380256 has 24 divisors (see below), whose sum is σ = 1637177160024. Its totient is φ = 400391355520.

The previous prime is 816182380253. The next prime is 816182380283. The reversal of 816182380256 is 652083281618.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (816182380253) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 240618110 + ... + 240621501.

It is an arithmetic number, because the mean of its divisors is an integer number (68215715001).

Almost surely, 2^816182380256 is an apocalyptic number.

It is an amenable number.

816182380256 is an abundant number, since it is smaller than the sum of its proper divisors (820994779768).

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

816182380256 is a wasteful number, since it uses less digits than its factorization.

816182380256 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 481239674 (or 481239666 counting only the distinct ones).

The product of its (nonzero) digits is 1105920, while the sum is 50.

The spelling of 816182380256 in words is "eight hundred sixteen billion, one hundred eighty-two million, three hundred eighty thousand, two hundred fifty-six".