216611002512 has 60 divisors (see below), whose sum is σ = 606298097340. Its totient is φ = 72193169664.

The previous prime is 216611002507. The next prime is 216611002529. The reversal of 216611002512 is 215200116612.

216611002512 is a `hidden beast` number, since 2 + 16 + 611 + 0 + 0 + 25 + 12 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 71148093696 + 145462908816 = 266736^2 + 381396^2 .

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, 917898 + ... + 1129494.

It is an arithmetic number, because the mean of its divisors is an integer number (10104968289).

Almost surely, 2^216611002512 is an apocalyptic number.

It is an amenable number.

216611002512 is an abundant number, since it is smaller than the sum of its proper divisors (389687094828).

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

216611002512 is a wasteful number, since it uses less digits than its factorization.

216611002512 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 218720 (or 218711 counting only the distinct ones).

The product of its (nonzero) digits is 1440, while the sum is 27.

The spelling of 216611002512 in words is "two hundred sixteen billion, six hundred eleven million, two thousand, five hundred twelve".