216525536712 has 96 divisors (see below), whose sum is σ = 589049604000. Its totient is φ = 71852285952.

The previous prime is 216525536681. The next prime is 216525536767. The reversal of 216525536712 is 217635525612.

It is a happy number.

216525536712 is a `hidden beast` number, since 2 + 1 + 6 + 525 + 53 + 6 + 71 + 2 = 666.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 61042923 + ... + 61046469.

It is an arithmetic number, because the mean of its divisors is an integer number (6135933375).

Almost surely, 2^216525536712 is an apocalyptic number.

It is an amenable number.

216525536712 is an abundant number, since it is smaller than the sum of its proper divisors (372524067288).

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

216525536712 is a wasteful number, since it uses less digits than its factorization.

216525536712 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7115 (or 7108 counting only the distinct ones).

The product of its digits is 756000, while the sum is 45.

The spelling of 216525536712 in words is "two hundred sixteen billion, five hundred twenty-five million, five hundred thirty-six thousand, seven hundred twelve".