2168532057 has 24 divisors (see below), whose sum is σ = 3001942272. Its totient is φ = 1392366240.

The previous prime is 2168532049. The next prime is 2168532059. The reversal of 2168532057 is 7502358612.

It is not a de Polignac number, because 2168532057 - 2³ = 2168532049 is a prime.

It is the 46568-th Hogben number.

It is not an unprimeable number, because it can be changed into a prime (2168532059) by changing a digit.

It is a nontrivial repunit in base 46567.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 641223 + ... + 644595.

It is an arithmetic number, because the mean of its divisors is an integer number (125080928).

Almost surely, 2^2168532057 is an apocalyptic number.

It is an amenable number.

2168532057 is a deficient number, since it is larger than the sum of its proper divisors (833410215).

2168532057 is a wasteful number, since it uses less digits than its factorization.

2168532057 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3661 (or 3630 counting only the distinct ones).

The product of its (nonzero) digits is 100800, while the sum is 39.

The square root of 2168532057 is about 46567.5000080528. The cubic root of 2168532057 is about 1294.3605926987.

The spelling of 2168532057 in words is "two billion, one hundred sixty-eight million, five hundred thirty-two thousand, fifty-seven".