1218241053364 has 12 divisors (see below), whose sum is σ = 2177281882944. Its totient is φ = 596160515384.

The previous prime is 1218241053331. The next prime is 1218241053371. The reversal of 1218241053364 is 4633501428121.

It is a super-2 number, since 2×1218241053364² (a number of 25 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3240002614 + ... + 3240002989.

It is an arithmetic number, because the mean of its divisors is an integer number (181440156912).

Almost surely, 2^{1218241053364} is an apocalyptic number.

It is an amenable number.

1218241053364 is a deficient number, since it is larger than the sum of its proper divisors (959040829580).

1218241053364 is a wasteful number, since it uses less digits than its factorization.

1218241053364 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6480005654 (or 6480005652 counting only the distinct ones).

The product of its (nonzero) digits is 138240, while the sum is 40.

The spelling of 1218241053364 in words is "one trillion, two hundred eighteen billion, two hundred forty-one million, fifty-three thousand, three hundred sixty-four".