215303003040 has 96 divisors (see below), whose sum is σ = 678878141760. Its totient is φ = 57357103104.

The previous prime is 215303003029. The next prime is 215303003063. The reversal of 215303003040 is 40300303512.

It is a tau number, because it is divible by the number of its divisors (96).

It is a junction number, because it is equal to n+sod(n) for n = 215303002998 and 215303003016.

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, 262047 + ... + 706593.

It is an arithmetic number, because the mean of its divisors is an integer number (7071647310).

Almost surely, 2^215303003040 is an apocalyptic number.

215303003040 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 215303003040, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (339439070880).

215303003040 is an abundant number, since it is smaller than the sum of its proper divisors (463575138720).

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

215303003040 is a wasteful number, since it uses less digits than its factorization.

215303003040 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 445574 (or 445566 counting only the distinct ones).

The product of its (nonzero) digits is 1080, while the sum is 21.

Adding to 215303003040 its reverse (40300303512), we get a palindrome (255603306552).

It can be divided in two parts, 21530 and 3003040, that added together give a triangular number (3024570 = T₂₄₅₉).

The spelling of 215303003040 in words is "two hundred fifteen billion, three hundred three million, three thousand, forty".