243223320421296 has 60 divisors (see below), whose sum is σ = 693530647166448. Its totient is φ = 79544733720192.

The previous prime is 243223320421271. The next prime is 243223320421309. The reversal of 243223320421296 is 692124023322342.

243223320421296 is a `hidden beast` number, since 2 + 4 + 3 + 2 + 2 + 332 + 0 + 4 + 21 + 296 = 666.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 15934434220 + ... + 15934449483.

Almost surely, 2^{243223320421296} is an apocalyptic number.

It is an amenable number.

243223320421296 is an abundant number, since it is smaller than the sum of its proper divisors (450307326745152).

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

243223320421296 is a wasteful number, since it uses less digits than its factorization.

243223320421296 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 31868883770 (or 31868883761 counting only the distinct ones).

The product of its (nonzero) digits is 1492992, while the sum is 45.

The spelling of 243223320421296 in words is "two hundred forty-three trillion, two hundred twenty-three billion, three hundred twenty million, four hundred twenty-one thousand, two hundred ninety-six".