216120765707 has 16 divisors (see below), whose sum is σ = 272227103232. Its totient is φ = 166669643520.

The previous prime is 216120765697. The next prime is 216120765781. The reversal of 216120765707 is 707567021612.

It is a cyclic number.

It is not a de Polignac number, because 216120765707 - 2²² = 216116571403 is a prime.

It is not an unprimeable number, because it can be changed into a prime (216120765797) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 14460383 + ... + 14475320.

It is an arithmetic number, because the mean of its divisors is an integer number (17014193952).

Almost surely, 2^216120765707 is an apocalyptic number.

216120765707 is a deficient number, since it is larger than the sum of its proper divisors (56106337525).

216120765707 is a wasteful number, since it uses less digits than its factorization.

216120765707 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 28935818.

The product of its (nonzero) digits is 246960, while the sum is 44.

The spelling of 216120765707 in words is "two hundred sixteen billion, one hundred twenty million, seven hundred sixty-five thousand, seven hundred seven".