216840100087312 has 60 divisors (see below), whose sum is σ = 480625187374276. Its totient is φ = 94192984627200.

The previous prime is 216840100087307. The next prime is 216840100087339. The reversal of 216840100087312 is 213780001048612.

It can be written as a sum of positive squares in 6 ways, for example, as 1036478741776 + 215803621345536 = 1018076^2 + 14690256^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1803573939 + ... + 1803694162.

Almost surely, 2^{216840100087312} is an apocalyptic number.

It is an amenable number.

216840100087312 is an abundant number, since it is smaller than the sum of its proper divisors (263785087286964).

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

216840100087312 is a wasteful number, since it uses less digits than its factorization.

216840100087312 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3607268156 (or 3607268133 counting only the distinct ones).

The product of its (nonzero) digits is 129024, while the sum is 43.

The spelling of 216840100087312 in words is "two hundred sixteen trillion, eight hundred forty billion, one hundred million, eighty-seven thousand, three hundred twelve".