212155552534 has 16 divisors (see below), whose sum is σ = 333021074400. Its totient is φ = 101174958720.

The previous prime is 212155552529. The next prime is 212155552549. The reversal of 212155552534 is 435255551212.

212155552534 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 an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 6591507 + ... + 6623614.

It is an arithmetic number, because the mean of its divisors is an integer number (20813817150).

Almost surely, 2^212155552534 is an apocalyptic number.

212155552534 is a deficient number, since it is larger than the sum of its proper divisors (120865521866).

212155552534 is a wasteful number, since it uses less digits than its factorization.

212155552534 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13215495.

The product of its digits is 300000, while the sum is 40.

The spelling of 212155552534 in words is "two hundred twelve billion, one hundred fifty-five million, five hundred fifty-two thousand, five hundred thirty-four".