1218330054666 has 80 divisors (see below), whose sum is σ = 2902404472704. Its totient is φ = 381123696096.

The previous prime is 1218330054661. The next prime is 1218330054671. The reversal of 1218330054666 is 6664500338121.

It is an interprime number because it is at equal distance from previous prime (1218330054661) and next prime (1218330054671).

It is not an unprimeable number, because it can be changed into a prime (1218330054661) by changing a digit.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 2887246 + ... + 3282201.

Almost surely, 2^{1218330054666} is an apocalyptic number.

1218330054666 is an abundant number, since it is smaller than the sum of its proper divisors (1684074418038).

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

1218330054666 is a wasteful number, since it uses less digits than its factorization.

1218330054666 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6169537 (or 6169528 counting only the distinct ones).

The product of its (nonzero) digits is 622080, while the sum is 45.

The spelling of 1218330054666 in words is "one trillion, two hundred eighteen billion, three hundred thirty million, fifty-four thousand, six hundred sixty-six".