211550660052072 has 64 divisors (see below), whose sum is σ = 591028451616960. Its totient is φ = 62542693286400.

The previous prime is 211550660052029. The next prime is 211550660052077. The reversal of 211550660052072 is 270250066055112.

It is not an unprimeable number, because it can be changed into a prime (211550660052077) 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 15 ways as a sum of consecutive naturals, for example, 9772285003 + ... + 9772306650.

It is an arithmetic number, because the mean of its divisors is an integer number (9234819556515).

Almost surely, 2^{211550660052072} is an apocalyptic number.

211550660052072 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

It is an amenable number.

211550660052072 is an abundant number, since it is smaller than the sum of its proper divisors (379477791564888).

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

211550660052072 is a wasteful number, since it uses less digits than its factorization.

211550660052072 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19544591714 (or 19544591710 counting only the distinct ones).

The product of its (nonzero) digits is 252000, while the sum is 42.

The spelling of 211550660052072 in words is "two hundred eleven trillion, five hundred fifty billion, six hundred sixty million, fifty-two thousand, seventy-two".