243006760221156 has 144 divisors (see below), whose sum is σ = 648164229672960. Its totient is φ = 76553061197760.

The previous prime is 243006760221151. The next prime is 243006760221167. The reversal of 243006760221156 is 651122067600342.

243006760221156 is a `hidden beast` number, since 2 + 4 + 3 + 0 + 0 + 6 + 7 + 602 + 21 + 15 + 6 = 666.

It is not an unprimeable number, because it can be changed into a prime (243006760221151) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 1152071341 + ... + 1152282251.

It is an arithmetic number, because the mean of its divisors is an integer number (4501140483840).

Almost surely, 2^{243006760221156} is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 243006760221156, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (324082114836480).

243006760221156 is an abundant number, since it is smaller than the sum of its proper divisors (405157469451804).

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

243006760221156 is a wasteful number, since it uses less digits than its factorization.

243006760221156 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 215014 (or 215009 counting only the distinct ones).

The product of its (nonzero) digits is 725760, while the sum is 45.

The spelling of 243006760221156 in words is "two hundred forty-three trillion, six billion, seven hundred sixty million, two hundred twenty-one thousand, one hundred fifty-six".