8161208276 has 24 divisors (see below), whose sum is σ = 15641435040. Its totient is φ = 3702867552.

The previous prime is 8161208269. The next prime is 8161208291. The reversal of 8161208276 is 6728021618.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1326986 + ... + 1333121.

It is an arithmetic number, because the mean of its divisors is an integer number (651726460).

Almost surely, 2^8161208276 is an apocalyptic number.

It is an amenable number.

8161208276 is a deficient number, since it is larger than the sum of its proper divisors (7480226764).

8161208276 is a wasteful number, since it uses less digits than its factorization.

8161208276 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2660183 (or 2660181 counting only the distinct ones).

The product of its (nonzero) digits is 64512, while the sum is 41.

The square root of 8161208276 is about 90339.4059976044. The cubic root of 8161208276 is about 2013.3447833386.

The spelling of 8161208276 in words is "eight billion, one hundred sixty-one million, two hundred eight thousand, two hundred seventy-six".