213670380816 has 200 divisors, whose sum is σ = 623481017280. Its totient is φ = 70642969344.

The previous prime is 213670380773. The next prime is 213670380817. The reversal of 213670380816 is 618083076312.

213670380816 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is not an unprimeable number, because it can be changed into a prime (213670380817) by changing a digit.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 173856490 + ... + 173857718.

Almost surely, 2^213670380816 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 213670380816, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (311740508640).

213670380816 is an abundant number, since it is smaller than the sum of its proper divisors (409810636464).

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

213670380816 is a wasteful number, since it uses less digits than its factorization.

213670380816 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2235 (or 2220 counting only the distinct ones).

The product of its (nonzero) digits is 290304, while the sum is 45.

The spelling of 213670380816 in words is "two hundred thirteen billion, six hundred seventy million, three hundred eighty thousand, eight hundred sixteen".