211355154136 has 32 divisors (see below), whose sum is σ = 452922301440. Its totient is φ = 90577100448.

The previous prime is 211355154133. The next prime is 211355154137. The reversal of 211355154136 is 631451553112.

211355154136 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a junction number, because it is equal to n+sod(n) for n = 211355154095 and 211355154104.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (211355154133) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1663705 + ... + 1786231.

It is an arithmetic number, because the mean of its divisors is an integer number (14153821920).

Almost surely, 2^211355154136 is an apocalyptic number.

It is an amenable number.

211355154136 is an abundant number, since it is smaller than the sum of its proper divisors (241567147304).

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

211355154136 is a wasteful number, since it uses less digits than its factorization.

211355154136 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 153343 (or 153339 counting only the distinct ones).

The product of its digits is 54000, while the sum is 37.

The spelling of 211355154136 in words is "two hundred eleven billion, three hundred fifty-five million, one hundred fifty-four thousand, one hundred thirty-six".