1218107518016 has 56 divisors (see below), whose sum is σ = 2431693339296. Its totient is φ = 605408348160.

The previous prime is 1218107518009. The next prime is 1218107518027. The reversal of 1218107518016 is 6108157018121.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 7053695 + ... + 7224321.

Almost surely, 2^{1218107518016} is an apocalyptic number.

1218107518016 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

It is an amenable number.

1218107518016 is a deficient number, since it is larger than the sum of its proper divisors (1213585821280).

1218107518016 is a wasteful number, since it uses less digits than its factorization.

1218107518016 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 171307 (or 171297 counting only the distinct ones).

The product of its (nonzero) digits is 26880, while the sum is 41.

The spelling of 1218107518016 in words is "one trillion, two hundred eighteen billion, one hundred seven million, five hundred eighteen thousand, sixteen".