215233441020 has 144 divisors (see below), whose sum is σ = 704624592672. Its totient is φ = 52865349120.

The previous prime is 215233440991. The next prime is 215233441079. The reversal of 215233441020 is 20144332512.

215233441020 is a `hidden beast` number, since 2 + 1 + 523 + 34 + 4 + 102 + 0 = 666.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 978979 + ... + 1178501.

It is an arithmetic number, because the mean of its divisors is an integer number (4893226338).

Almost surely, 2^215233441020 is an apocalyptic number.

215233441020 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 215233441020, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (352312296336).

215233441020 is an abundant number, since it is smaller than the sum of its proper divisors (489391151652).

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

215233441020 is a wasteful number, since it uses less digits than its factorization.

215233441020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 200012 (or 200007 counting only the distinct ones).

The product of its (nonzero) digits is 5760, while the sum is 27.

Adding to 215233441020 its reverse (20144332512), we get a palindrome (235377773532).

The spelling of 215233441020 in words is "two hundred fifteen billion, two hundred thirty-three million, four hundred forty-one thousand, twenty".