213445523155 has 8 divisors (see below), whose sum is σ = 258401306592. Its totient is φ = 169245299328.

The previous prime is 213445523141. The next prime is 213445523171. The reversal of 213445523155 is 551325544312.

213445523155 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-213445523155 is a prime.

It is a Duffinian 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, 188889279 + ... + 188890408.

It is an arithmetic number, because the mean of its divisors is an integer number (32300163324).

Almost surely, 2^213445523155 is an apocalyptic number.

213445523155 is a deficient number, since it is larger than the sum of its proper divisors (44955783437).

213445523155 is a wasteful number, since it uses less digits than its factorization.

213445523155 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 377779805.

The product of its digits is 360000, while the sum is 40.

The spelling of 213445523155 in words is "two hundred thirteen billion, four hundred forty-five million, five hundred twenty-three thousand, one hundred fifty-five".