213156233560 has 16 divisors (see below), whose sum is σ = 479601525600. Its totient is φ = 85262493408.

The previous prime is 213156233539. The next prime is 213156233599. The reversal of 213156233560 is 65332651312.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2664452880 + ... + 2664452959.

It is an arithmetic number, because the mean of its divisors is an integer number (29975095350).

Almost surely, 2^213156233560 is an apocalyptic number.

213156233560 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

213156233560 is an abundant number, since it is smaller than the sum of its proper divisors (266445292040).

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

213156233560 is a wasteful number, since it uses less digits than its factorization.

213156233560 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5328905850 (or 5328905846 counting only the distinct ones).

The product of its (nonzero) digits is 97200, while the sum is 37.

Adding to 213156233560 its reverse (65332651312), we get a palindrome (278488884872).

The spelling of 213156233560 in words is "two hundred thirteen billion, one hundred fifty-six million, two hundred thirty-three thousand, five hundred sixty".