243212801552 has 160 divisors (see below), whose sum is σ = 563754774528. Its totient is φ = 99481794048.

The previous prime is 243212801539. The next prime is 243212801561. The reversal of 243212801552 is 255108212342.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 67128413 + ... + 67132035.

Almost surely, 2^243212801552 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 243212801552, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (281877387264).

243212801552 is an abundant number, since it is smaller than the sum of its proper divisors (320541972976).

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

243212801552 is a wasteful number, since it uses less digits than its factorization.

243212801552 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3997 (or 3991 counting only the distinct ones).

The product of its (nonzero) digits is 38400, while the sum is 35.

The spelling of 243212801552 in words is "two hundred forty-three billion, two hundred twelve million, eight hundred one thousand, five hundred fifty-two".