8223159672 has 192 divisors, whose sum is σ = 27558236160. Its totient is φ = 2157062400.

The previous prime is 8223159649. The next prime is 8223159689. The reversal of 8223159672 is 2769513228.

8223159672 is a `hidden beast` number, since 8 + 22 + 31 + 596 + 7 + 2 = 666.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 1248147 + ... + 1254717.

It is an arithmetic number, because the mean of its divisors is an integer number (143532480).

Almost surely, 2^8223159672 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 8223159672, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (13779118080).

8223159672 is an abundant number, since it is smaller than the sum of its proper divisors (19335076488).

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

8223159672 is a wasteful number, since it uses less digits than its factorization.

8223159672 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6794 (or 6787 counting only the distinct ones).

The product of its digits is 362880, while the sum is 45.

The square root of 8223159672 is about 90681.6391117849. The cubic root of 8223159672 is about 2018.4263527367.

The spelling of 8223159672 in words is "eight billion, two hundred twenty-three million, one hundred fifty-nine thousand, six hundred seventy-two".