211157666288 has 20 divisors (see below), whose sum is σ = 417822617760. Its totient is φ = 103332474624.

The previous prime is 211157666287. The next prime is 211157666299. The reversal of 211157666288 is 882666751112.

211157666288 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (211157666287) 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 3 ways as a sum of consecutive naturals, for example, 140396633 + ... + 140398136.

It is an arithmetic number, because the mean of its divisors is an integer number (20891130888).

Almost surely, 2^211157666288 is an apocalyptic number.

It is an amenable number.

211157666288 is a deficient number, since it is larger than the sum of its proper divisors (206664951472).

211157666288 is a wasteful number, since it uses less digits than its factorization.

211157666288 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 280794824 (or 280794818 counting only the distinct ones).

The product of its digits is 1935360, while the sum is 53.

The spelling of 211157666288 in words is "two hundred eleven billion, one hundred fifty-seven million, six hundred sixty-six thousand, two hundred eighty-eight".