243996041016 has 256 divisors, whose sum is σ = 851926118400. Its totient is φ = 62981203968.

The previous prime is 243996040979. The next prime is 243996041017. The reversal of 243996041016 is 610140699342.

243996041016 is a `hidden beast` number, since 2 + 4 + 39 + 9 + 604 + 1 + 0 + 1 + 6 = 666.

243996041016 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (243996041017) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 791776 + ... + 1055888.

It is an arithmetic number, because the mean of its divisors is an integer number (3327836400).

Almost surely, 2^243996041016 is an apocalyptic number.

243996041016 is a gapful number since it is divisible by the number (26) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 243996041016, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (425963059200).

243996041016 is an abundant number, since it is smaller than the sum of its proper divisors (607930077384).

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

243996041016 is a wasteful number, since it uses less digits than its factorization.

243996041016 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 264195 (or 264185 counting only the distinct ones).

The product of its (nonzero) digits is 279936, while the sum is 45.

The spelling of 243996041016 in words is "two hundred forty-three billion, nine hundred ninety-six million, forty-one thousand, sixteen".