215613183061056 has 252 divisors, whose sum is σ = 628557711211248. Its totient is φ = 65180887833600.

The previous prime is 215613183061007. The next prime is 215613183061121. The reversal of 215613183061056 is 650160381316512.

It is a Harshad number since it is a multiple of its sum of digits (48).

It is a junction number, because it is equal to n+sod(n) for n = 215613183060996 and 215613183061014.

It is an unprimeable number.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 4117636731 + ... + 4117689093.

Almost surely, 2^{215613183061056} is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 215613183061056, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (314278855605624).

215613183061056 is an abundant number, since it is smaller than the sum of its proper divisors (412944528150192).

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

215613183061056 is an equidigital number, since it uses as much as digits as its factorization.

215613183061056 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 53242 (or 52800 counting only the distinct ones).

The product of its (nonzero) digits is 777600, while the sum is 48.

The spelling of 215613183061056 in words is "two hundred fifteen trillion, six hundred thirteen billion, one hundred eighty-three million, sixty-one thousand, fifty-six".