211455642355116 has 12 divisors (see below), whose sum is σ = 493396498828632. Its totient is φ = 70485214118368.

The previous prime is 211455642355081. The next prime is 211455642355151. The reversal of 211455642355116 is 611553246554112.

It is an interprime number because it is at equal distance from previous prime (211455642355081) and next prime (211455642355151).

It is a tau number, because it is divible by the number of its divisors (12).

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 8810651764785 + ... + 8810651764808.

It is an arithmetic number, because the mean of its divisors is an integer number (41116374902386).

Almost surely, 2^{211455642355116} is an apocalyptic number.

It is an amenable number.

211455642355116 is an abundant number, since it is smaller than the sum of its proper divisors (281940856473516).

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

211455642355116 is a wasteful number, since it uses less digits than its factorization.

211455642355116 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17621303529600 (or 17621303529598 counting only the distinct ones).

The product of its digits is 4320000, while the sum is 51.

The spelling of 211455642355116 in words is "two hundred eleven trillion, four hundred fifty-five billion, six hundred forty-two million, three hundred fifty-five thousand, one hundred sixteen".