211433366164 has 6 divisors (see below), whose sum is σ = 370008390794. Its totient is φ = 105716683080.

The previous prime is 211433366143. The next prime is 211433366189. The reversal of 211433366164 is 461663334112.

It can be written as a sum of positive squares in only one way, i.e., 183434037264 + 27999328900 = 428292^2 + 167330^2 .

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, 26429170767 + ... + 26429170774.

Almost surely, 2^211433366164 is an apocalyptic number.

It is an amenable number.

211433366164 is a deficient number, since it is larger than the sum of its proper divisors (158575024630).

211433366164 is a wasteful number, since it uses less digits than its factorization.

211433366164 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 52858341545 (or 52858341543 counting only the distinct ones).

The product of its digits is 186624, while the sum is 40.

The spelling of 211433366164 in words is "two hundred eleven billion, four hundred thirty-three million, three hundred sixty-six thousand, one hundred sixty-four".