66848624212 has 6 divisors (see below), whose sum is σ = 116985092378. Its totient is φ = 33424312104.

The previous prime is 66848624203. The next prime is 66848624233. The reversal of 66848624212 is 21242684866.

66848624212 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in only one way, i.e., 54114855876 + 12733768336 = 232626^2 + 112844^2 .

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 8356078023 + ... + 8356078030.

Almost surely, 2^66848624212 is an apocalyptic number.

It is an amenable number.

66848624212 is a deficient number, since it is larger than the sum of its proper divisors (50136468166).

66848624212 is a wasteful number, since it uses less digits than its factorization.

66848624212 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16712156057 (or 16712156055 counting only the distinct ones).

The product of its digits is 1769472, while the sum is 49.

The spelling of 66848624212 in words is "sixty-six billion, eight hundred forty-eight million, six hundred twenty-four thousand, two hundred twelve".