1218980135016 has 128 divisors (see below), whose sum is σ = 3924282470400. Its totient is φ = 343374655680.

The previous prime is 1218980134997. The next prime is 1218980135041. The reversal of 1218980135016 is 6105310898121.

1218980135016 is a `hidden beast` number, since 1 + 218 + 9 + 80 + 1 + 350 + 1 + 6 = 666.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 5570140 + ... + 5784843.

It is an arithmetic number, because the mean of its divisors is an integer number (30658456800).

Almost surely, 2^{1218980135016} is an apocalyptic number.

It is an amenable number.

1218980135016 is an abundant number, since it is smaller than the sum of its proper divisors (2705302335384).

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

1218980135016 is a wasteful number, since it uses less digits than its factorization.

1218980135016 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11355076 (or 11355066 counting only the distinct ones).

The product of its (nonzero) digits is 103680, while the sum is 45.

The spelling of 1218980135016 in words is "one trillion, two hundred eighteen billion, nine hundred eighty million, one hundred thirty-five thousand, sixteen".