8168591052 has 36 divisors (see below), whose sum is σ = 21862995336. Its totient is φ = 2562695040.

The previous prime is 8168591051. The next prime is 8168591077. The reversal of 8168591052 is 2501958618.

It is a happy number.

8168591052 is a `hidden beast` number, since 8 + 1 + 6 + 8 + 591 + 0 + 52 = 666.

It is a tau number, because it is divible by the number of its divisors (36).

It is a junction number, because it is equal to n+sod(n) for n = 8168590989 and 8168591007.

It is not an unprimeable number, because it can be changed into a prime (8168591051) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 6673074 + ... + 6674297.

It is an arithmetic number, because the mean of its divisors is an integer number (607305426).

Almost surely, 2^8168591052 is an apocalyptic number.

It is an amenable number.

8168591052 is an abundant number, since it is smaller than the sum of its proper divisors (13694404284).

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

8168591052 is a wasteful number, since it uses less digits than its factorization.

8168591052 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13347398 (or 13347393 counting only the distinct ones).

The product of its (nonzero) digits is 172800, while the sum is 45.

The square root of 8168591052 is about 90380.2580877041. The cubic root of 8168591052 is about 2013.9517030165.

The spelling of 8168591052 in words is "eight billion, one hundred sixty-eight million, five hundred ninety-one thousand, fifty-two".