243288029666 has 8 divisors (see below), whose sum is σ = 398107684944. Its totient is φ = 110585468020.

The previous prime is 243288029651. The next prime is 243288029681. The reversal of 243288029666 is 666920882342.

It is an interprime number because it is at equal distance from previous prime (243288029651) and next prime (243288029681).

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

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5529273380 + ... + 5529273423.

It is an arithmetic number, because the mean of its divisors is an integer number (49763460618).

Almost surely, 2^243288029666 is an apocalyptic number.

243288029666 is a deficient number, since it is larger than the sum of its proper divisors (154819655278).

243288029666 is a wasteful number, since it uses less digits than its factorization.

243288029666 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11058546816.

The product of its (nonzero) digits is 11943936, while the sum is 56.

The spelling of 243288029666 in words is "two hundred forty-three billion, two hundred eighty-eight million, twenty-nine thousand, six hundred sixty-six".