213240186552 has 32 divisors (see below), whose sum is σ = 533651817600. Its totient is φ = 71006548704.

The previous prime is 213240186503. The next prime is 213240186611. The reversal of 213240186552 is 255681042312.

It is a self number, because there is not a number n which added to its sum of digits gives 213240186552.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4570902 + ... + 4617317.

It is an arithmetic number, because the mean of its divisors is an integer number (16676619300).

Almost surely, 2^213240186552 is an apocalyptic number.

It is an amenable number.

213240186552 is an abundant number, since it is smaller than the sum of its proper divisors (320411631048).

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

213240186552 is a wasteful number, since it uses less digits than its factorization.

213240186552 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9189195 (or 9189191 counting only the distinct ones).

The product of its (nonzero) digits is 115200, while the sum is 39.

The spelling of 213240186552 in words is "two hundred thirteen billion, two hundred forty million, one hundred eighty-six thousand, five hundred fifty-two".