216661025202 has 32 divisors (see below), whose sum is σ = 452409615360. Its totient is φ = 69042518160.

The previous prime is 216661025201. The next prime is 216661025227. The reversal of 216661025202 is 202520166612.

216661025202 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is not an unprimeable number, because it can be changed into a prime (216661025201) 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, 176052 + ... + 681407.

It is an arithmetic number, because the mean of its divisors is an integer number (14137800480).

Almost surely, 2^216661025202 is an apocalyptic number.

216661025202 is an abundant number, since it is smaller than the sum of its proper divisors (235748590158).

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

216661025202 is a wasteful number, since it uses less digits than its factorization.

216661025202 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 859318.

The product of its (nonzero) digits is 17280, while the sum is 33.

The spelling of 216661025202 in words is "two hundred sixteen billion, six hundred sixty-one million, twenty-five thousand, two hundred two".