212163342164 has 12 divisors (see below), whose sum is σ = 384088809300. Its totient is φ = 102423682368.

The previous prime is 212163342143. The next prime is 212163342187. The reversal of 212163342164 is 461243361212.

It can be written as a sum of positive squares in 2 ways, for example, as 116081941264 + 96081400900 = 340708^2 + 309970^2 .

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, 914497049 + ... + 914497280.

It is an arithmetic number, because the mean of its divisors is an integer number (32007400775).

Almost surely, 2^212163342164 is an apocalyptic number.

It is an amenable number.

212163342164 is a deficient number, since it is larger than the sum of its proper divisors (171925467136).

212163342164 is a wasteful number, since it uses less digits than its factorization.

212163342164 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1828994362 (or 1828994360 counting only the distinct ones).

The product of its digits is 41472, while the sum is 35.

The spelling of 212163342164 in words is "two hundred twelve billion, one hundred sixty-three million, three hundred forty-two thousand, one hundred sixty-four".