213155050240 has 144 divisors (see below), whose sum is σ = 581206461696. Its totient is φ = 74140774400.

The previous prime is 213155050237. The next prime is 213155050301. The reversal of 213155050240 is 42050551312.

It is a junction number, because it is equal to n+sod(n) for n = 213155050199 and 213155050208.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 5266 + ... + 652945.

It is an arithmetic number, because the mean of its divisors is an integer number (4036155984).

Almost surely, 2^213155050240 is an apocalyptic number.

213155050240 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 213155050240, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (290603230848).

213155050240 is an abundant number, since it is smaller than the sum of its proper divisors (368051411456).

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

213155050240 is a wasteful number, since it uses less digits than its factorization.

213155050240 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 658266 (or 658252 counting only the distinct ones).

The product of its (nonzero) digits is 6000, while the sum is 28.

The spelling of 213155050240 in words is "two hundred thirteen billion, one hundred fifty-five million, fifty thousand, two hundred forty".