212661675912 has 64 divisors (see below), whose sum is σ = 616162636800. Its totient is φ = 59904694080.

The previous prime is 212661675871. The next prime is 212661675917. The reversal of 212661675912 is 219576166212.

212661675912 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not an unprimeable number, because it can be changed into a prime (212661675917) 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 15 ways as a sum of consecutive naturals, for example, 8902462 + ... + 8926317.

It is an arithmetic number, because the mean of its divisors is an integer number (9627541200).

Almost surely, 2^212661675912 is an apocalyptic number.

It is an amenable number.

212661675912 is an abundant number, since it is smaller than the sum of its proper divisors (403500960888).

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

212661675912 is a wasteful number, since it uses less digits than its factorization.

212661675912 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17828866 (or 17828862 counting only the distinct ones).

The product of its digits is 544320, while the sum is 48.

The spelling of 212661675912 in words is "two hundred twelve billion, six hundred sixty-one million, six hundred seventy-five thousand, nine hundred twelve".