816101712 has 30 divisors (see below), whose sum is σ = 2283951722. Its totient is φ = 272033856.

The previous prime is 816101681. The next prime is 816101719. The reversal of 816101712 is 217101618.

It can be written as a sum of positive squares in only one way, i.e., 518746176 + 297355536 = 22776^2 + 17244^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (816101719) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 2833543 + ... + 2833830.

Almost surely, 2^816101712 is an apocalyptic number.

It is an amenable number.

816101712 is an abundant number, since it is smaller than the sum of its proper divisors (1467850010).

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

816101712 is a wasteful number, since it uses less digits than its factorization.

816101712 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5667387 (or 5667378 counting only the distinct ones).

The product of its (nonzero) digits is 672, while the sum is 27.

The square root of 816101712 is about 28567.4939747959. The cubic root of 816101712 is about 934.5045701936.

The spelling of 816101712 in words is "eight hundred sixteen million, one hundred one thousand, seven hundred twelve".