211166560666612 has 48 divisors (see below), whose sum is σ = 383148997096320. Its totient is φ = 101711941833600.

The previous prime is 211166560666591. The next prime is 211166560666619. The reversal of 211166560666612 is 216666065661112.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (211166560666619) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 458118937 + ... + 458579647.

It is an arithmetic number, because the mean of its divisors is an integer number (7982270772840).

Almost surely, 2^{211166560666612} is an apocalyptic number.

It is an amenable number.

211166560666612 is a deficient number, since it is larger than the sum of its proper divisors (171982436429708).

211166560666612 is a wasteful number, since it uses less digits than its factorization.

211166560666612 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 469672 (or 469670 counting only the distinct ones).

The product of its (nonzero) digits is 5598720, while the sum is 55.

The spelling of 211166560666612 in words is "two hundred eleven trillion, one hundred sixty-six billion, five hundred sixty million, six hundred sixty-six thousand, six hundred twelve".