215204530435040 has 48 divisors (see below), whose sum is σ = 508465427364720. Its totient is φ = 86074239820800.

The previous prime is 215204530435021. The next prime is 215204530435079. The reversal of 215204530435040 is 40534035402512.

It is a junction number, because it is equal to n+sod(n) for n = 215204530434985 and 215204530435003.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 57334286 + ... + 60972365.

It is an arithmetic number, because the mean of its divisors is an integer number (10593029736765).

Almost surely, 2^{215204530435040} is an apocalyptic number.

215204530435040 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

215204530435040 is an abundant number, since it is smaller than the sum of its proper divisors (293260896929680).

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

215204530435040 is a wasteful number, since it uses less digits than its factorization.

215204530435040 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 118318035 (or 118318027 counting only the distinct ones).

The product of its (nonzero) digits is 288000, while the sum is 38.

Adding to 215204530435040 its reverse (40534035402512), we get a palindrome (255738565837552).

The spelling of 215204530435040 in words is "two hundred fifteen trillion, two hundred four billion, five hundred thirty million, four hundred thirty-five thousand, forty".