856168460212 has 12 divisors (see below), whose sum is σ = 1613548252036. Its totient is φ = 395154673920.

The previous prime is 856168460209. The next prime is 856168460227. The reversal of 856168460212 is 212064861658.

It can be written as a sum of positive squares in 2 ways, for example, as 328287745296 + 527880714916 = 572964^2 + 726554^2 .

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 8232388989 + ... + 8232389092.

Almost surely, 2^856168460212 is an apocalyptic number.

It is an amenable number.

856168460212 is a deficient number, since it is larger than the sum of its proper divisors (757379791824).

856168460212 is a wasteful number, since it uses less digits than its factorization.

856168460212 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16464778098 (or 16464778096 counting only the distinct ones).

The product of its (nonzero) digits is 1105920, while the sum is 49.

The spelling of 856168460212 in words is "eight hundred fifty-six billion, one hundred sixty-eight million, four hundred sixty thousand, two hundred twelve".