216063748656 has 60 divisors (see below), whose sum is σ = 691061040592. Its totient is φ = 61732499328.

The previous prime is 216063748631. The next prime is 216063748657. The reversal of 216063748656 is 656847360612.

216063748656 is a `hidden beast` number, since 21 + 60 + 6 + 37 + 486 + 56 = 666.

It is not an unprimeable number, because it can be changed into a prime (216063748657) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 107173471 + ... + 107175486.

Almost surely, 2^216063748656 is an apocalyptic number.

It is an amenable number.

216063748656 is an abundant number, since it is smaller than the sum of its proper divisors (474997291936).

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

216063748656 is a wasteful number, since it uses less digits than its factorization.

216063748656 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 214348978 (or 214348969 counting only the distinct ones).

The product of its (nonzero) digits is 8709120, while the sum is 54.

The spelling of 216063748656 in words is "two hundred sixteen billion, sixty-three million, seven hundred forty-eight thousand, six hundred fifty-six".