8173220896 has 12 divisors (see below), whose sum is σ = 16091028702. Its totient is φ = 4086610432.

The previous prime is 8173220851. The next prime is 8173220921. The reversal of 8173220896 is 6980223718.

It can be written as a sum of positive squares in only one way, i.e., 7163252496 + 1009968400 = 84636^2 + 31780^2 .

It is a super-2 number, since 2×8173220896² (a number of 21 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 127706545 + ... + 127706608.

Almost surely, 2^8173220896 is an apocalyptic number.

It is an amenable number.

8173220896 is a deficient number, since it is larger than the sum of its proper divisors (7917807806).

8173220896 is a wasteful number, since it uses less digits than its factorization.

8173220896 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 255413163 (or 255413155 counting only the distinct ones).

The product of its (nonzero) digits is 290304, while the sum is 46.

The square root of 8173220896 is about 90405.8675971864. The cubic root of 8173220896 is about 2014.3321244413.

The spelling of 8173220896 in words is "eight billion, one hundred seventy-three million, two hundred twenty thousand, eight hundred ninety-six".