2168558031146 has 16 divisors (see below), whose sum is σ = 3511145496264. Its totient is φ = 998561447424.

The previous prime is 2168558031097. The next prime is 2168558031173. The reversal of 2168558031146 is 6411308558612.

It can be written as a sum of positive squares in 4 ways, for example, as 1749696663121 + 418861368025 = 1322761^2 + 647195^2 .

It is a junction number, because it is equal to n+sod(n) for n = 2168558031094 and 2168558031103.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 96300611 + ... + 96323126.

Almost surely, 2^{2168558031146} is an apocalyptic number.

2168558031146 is a gapful number since it is divisible by the number (26) formed by its first and last digit.

2168558031146 is a deficient number, since it is larger than the sum of its proper divisors (1342587465118).

2168558031146 is a wasteful number, since it uses less digits than its factorization.

2168558031146 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 192624185.

The product of its (nonzero) digits is 1382400, while the sum is 50.

The spelling of 2168558031146 in words is "two trillion, one hundred sixty-eight billion, five hundred fifty-eight million, thirty-one thousand, one hundred forty-six".