243112066741205 has 8 divisors (see below), whose sum is σ = 291754822862904. Its totient is φ = 194476091544000.

The previous prime is 243112066741171. The next prime is 243112066741213. The reversal of 243112066741205 is 502147660211342.

It can be written as a sum of positive squares in 4 ways, for example, as 4836753344644 + 238275313396561 = 2199262^2 + 15436169^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 243112066741205 - 2¹⁶ = 243112066675669 is a prime.

It is a super-2 number, since 2×243112066741205² (a number of 30 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1695152246 + ... + 1695295655.

It is an arithmetic number, because the mean of its divisors is an integer number (36469352857863).

Almost surely, 2^{243112066741205} is an apocalyptic number.

It is an amenable number.

243112066741205 is a deficient number, since it is larger than the sum of its proper divisors (48642756121699).

243112066741205 is a wasteful number, since it uses less digits than its factorization.

243112066741205 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3390462247.

The product of its (nonzero) digits is 483840, while the sum is 44.

The spelling of 243112066741205 in words is "two hundred forty-three trillion, one hundred twelve billion, sixty-six million, seven hundred forty-one thousand, two hundred five".