217960133112 has 24 divisors (see below), whose sum is σ = 590308694040. Its totient is φ = 72653377680.

The previous prime is 217960133089. The next prime is 217960133119. The reversal of 217960133112 is 211331069712.

217960133112 is a `hidden beast` number, since 2 + 1 + 7 + 9 + 601 + 3 + 31 + 12 = 666.

It is a tau number, because it is divible by the number of its divisors (24).

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (217960133119) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 1513611964 + ... + 1513612107.

It is an arithmetic number, because the mean of its divisors is an integer number (24596195585).

Almost surely, 2^217960133112 is an apocalyptic number.

It is an amenable number.

217960133112 is an abundant number, since it is smaller than the sum of its proper divisors (372348560928).

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

217960133112 is a wasteful number, since it uses less digits than its factorization.

217960133112 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3027224083 (or 3027224076 counting only the distinct ones).

The product of its (nonzero) digits is 13608, while the sum is 36.

The spelling of 217960133112 in words is "two hundred seventeen billion, nine hundred sixty million, one hundred thirty-three thousand, one hundred twelve".