213255505534 has 16 divisors (see below), whose sum is σ = 344252381616. Its totient is φ = 98710358400.

The previous prime is 213255505511. The next prime is 213255505537. The reversal of 213255505534 is 435505552312.

213255505534 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 (213255505537) 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 7 ways as a sum of consecutive naturals, for example, 51409572 + ... + 51413719.

It is an arithmetic number, because the mean of its divisors is an integer number (21515773851).

Almost surely, 2^213255505534 is an apocalyptic number.

213255505534 is a deficient number, since it is larger than the sum of its proper divisors (130996876082).

213255505534 is a wasteful number, since it uses less digits than its factorization.

213255505534 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 102823371.

The product of its (nonzero) digits is 450000, while the sum is 40.

The spelling of 213255505534 in words is "two hundred thirteen billion, two hundred fifty-five million, five hundred five thousand, five hundred thirty-four".