243144130666 has 16 divisors (see below), whose sum is σ = 381042744768. Its totient is φ = 116142919200.

The previous prime is 243144130661. The next prime is 243144130693. The reversal of 243144130666 is 666031441342.

It is not an unprimeable number, because it can be changed into a prime (243144130661) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3221475 + ... + 3296086.

It is an arithmetic number, because the mean of its divisors is an integer number (23815171548).

Almost surely, 2^243144130666 is an apocalyptic number.

243144130666 is a deficient number, since it is larger than the sum of its proper divisors (137898614102).

243144130666 is a wasteful number, since it uses less digits than its factorization.

243144130666 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6518397.

The product of its (nonzero) digits is 248832, while the sum is 40.

The spelling of 243144130666 in words is "two hundred forty-three billion, one hundred forty-four million, one hundred thirty thousand, six hundred sixty-six".