8163953190 has 24 divisors (see below), whose sum is σ = 21226278528. Its totient is φ = 2177054160.

The previous prime is 8163953173. The next prime is 8163953191. The reversal of 8163953190 is 913593618.

8163953190 is a `hidden beast` number, since 8 + 1 + 639 + 5 + 3 + 1 + 9 + 0 = 666.

It is a super-2 number, since 2×8163953190² (a number of 21 digits) contains 22 as substring.

It is a Smith number, since the sum of its digits (45) coincides with the sum of the digits of its prime factors.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (8163953191) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 45355206 + ... + 45355385.

It is an arithmetic number, because the mean of its divisors is an integer number (884428272).

Almost surely, 2^8163953190 is an apocalyptic number.

8163953190 is an abundant number, since it is smaller than the sum of its proper divisors (13062325338).

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

8163953190 is a wasteful number, since it uses less digits than its factorization.

8163953190 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 90710604 (or 90710601 counting only the distinct ones).

The product of its (nonzero) digits is 174960, while the sum is 45.

The square root of 8163953190 is about 90354.5969500169. The cubic root of 8163953190 is about 2013.5704786290.

The spelling of 8163953190 in words is "eight billion, one hundred sixty-three million, nine hundred fifty-three thousand, one hundred ninety".