213045335055 has 64 divisors (see below), whose sum is σ = 433184716800. Its totient is φ = 97317745920.

The previous prime is 213045335029. The next prime is 213045335057. The reversal of 213045335055 is 550533540312.

213045335055 is a `hidden beast` number, since 21 + 3 + 0 + 4 + 533 + 50 + 55 = 666.

It is not a de Polignac number, because 213045335055 - 2¹² = 213045330959 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (213045335057) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 1160995 + ... + 1331915.

It is an arithmetic number, because the mean of its divisors is an integer number (6768511200).

Almost surely, 2^213045335055 is an apocalyptic number.

213045335055 is an abundant number, since it is smaller than the sum of its proper divisors (220139381745).

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

213045335055 is a wasteful number, since it uses less digits than its factorization.

213045335055 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 172261 (or 172255 counting only the distinct ones).

The product of its (nonzero) digits is 135000, while the sum is 36.

Adding to 213045335055 its reverse (550533540312), we get a palindrome (763578875367).

The spelling of 213045335055 in words is "two hundred thirteen billion, forty-five million, three hundred thirty-five thousand, fifty-five".