243242510066 has 16 divisors (see below), whose sum is σ = 376983885888. Its totient is φ = 117645855600.

The previous prime is 243242510059. The next prime is 243242510081. The reversal of 243242510066 is 660015242342.

It is a super-2 number, since 2×243242510066² (a number of 24 digits) contains 22 as substring.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 16152620 + ... + 16167671.

It is an arithmetic number, because the mean of its divisors is an integer number (23561492868).

Almost surely, 2^243242510066 is an apocalyptic number.

243242510066 is a deficient number, since it is larger than the sum of its proper divisors (133741375822).

243242510066 is a wasteful number, since it uses less digits than its factorization.

243242510066 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 32320417.

The product of its (nonzero) digits is 69120, while the sum is 35.

The spelling of 243242510066 in words is "two hundred forty-three billion, two hundred forty-two million, five hundred ten thousand, sixty-six".