215340919560 has 384 divisors, whose sum is σ = 763760350080. Its totient is φ = 52302495744.

The previous prime is 215340919513. The next prime is 215340919583. The reversal of 215340919560 is 65919043512.

215340919560 is a `hidden beast` number, since 2 + 1 + 53 + 409 + 195 + 6 + 0 = 666.

215340919560 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is an unprimeable number.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 237420627 + ... + 237421533.

It is an arithmetic number, because the mean of its divisors is an integer number (1988959245).

Almost surely, 2^215340919560 is an apocalyptic number.

215340919560 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 215340919560, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (381880175040).

215340919560 is an abundant number, since it is smaller than the sum of its proper divisors (548419430520).

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

215340919560 is a wasteful number, since it uses less digits than its factorization.

215340919560 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1557 (or 1550 counting only the distinct ones).

The product of its (nonzero) digits is 291600, while the sum is 45.

The spelling of 215340919560 in words is "two hundred fifteen billion, three hundred forty million, nine hundred nineteen thousand, five hundred sixty".