215056171520112 has 40 divisors (see below), whose sum is σ = 598297297692304. Its totient is φ = 66171129698304.

The previous prime is 215056171520009. The next prime is 215056171520119. The reversal of 215056171520112 is 211025171650512.

215056171520112 is digitally balanced in base 2 and base 4, because in such bases 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 (39).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (215056171520119) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 172320649633 + ... + 172320650880.

Almost surely, 2^{215056171520112} is an apocalyptic number.

It is an amenable number.

215056171520112 is an abundant number, since it is smaller than the sum of its proper divisors (383241126172192).

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

215056171520112 is a wasteful number, since it uses less digits than its factorization.

215056171520112 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 344641300537 (or 344641300531 counting only the distinct ones).

The product of its (nonzero) digits is 42000, while the sum is 39.

The spelling of 215056171520112 in words is "two hundred fifteen trillion, fifty-six billion, one hundred seventy-one million, five hundred twenty thousand, one hundred twelve".