215014378608 has 160 divisors (see below), whose sum is σ = 654620512320. Its totient is φ = 67337256960.

The previous prime is 215014378597. The next prime is 215014378609. The reversal of 215014378608 is 806873410512.

215014378608 is a `hidden beast` number, since 2 + 1 + 5 + 0 + 1 + 4 + 37 + 8 + 608 = 666.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (215014378609) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 4212118 + ... + 4262858.

It is an arithmetic number, because the mean of its divisors is an integer number (4091378202).

Almost surely, 2^215014378608 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 215014378608, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (327310256160).

215014378608 is an abundant number, since it is smaller than the sum of its proper divisors (439606133712).

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

215014378608 is a wasteful number, since it uses less digits than its factorization.

215014378608 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 51352 (or 51340 counting only the distinct ones).

The product of its (nonzero) digits is 322560, while the sum is 45.

The spelling of 215014378608 in words is "two hundred fifteen billion, fourteen million, three hundred seventy-eight thousand, six hundred eight".