216560116654 has 8 divisors (see below), whose sum is σ = 371245914288. Its totient is φ = 92811478560.

The previous prime is 216560116651. The next prime is 216560116769. The reversal of 216560116654 is 456611065612.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a self number, because there is not a number n which added to its sum of digits gives 216560116654.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (216560116651) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 7734289867 + ... + 7734289894.

It is an arithmetic number, because the mean of its divisors is an integer number (46405739286).

Almost surely, 2^216560116654 is an apocalyptic number.

216560116654 is a deficient number, since it is larger than the sum of its proper divisors (154685797634).

216560116654 is a wasteful number, since it uses less digits than its factorization.

216560116654 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15468579770.

The product of its (nonzero) digits is 259200, while the sum is 43.

The spelling of 216560116654 in words is "two hundred sixteen billion, five hundred sixty million, one hundred sixteen thousand, six hundred fifty-four".