1218013564495 has 96 divisors (see below), whose sum is σ = 1976981852160. Its totient is φ = 702203074560.

The previous prime is 1218013564457. The next prime is 1218013564549. The reversal of 1218013564495 is 5944653108121.

It is not a de Polignac number, because 1218013564495 - 2⁷ = 1218013564367 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 2921836 + ... + 3312574.

It is an arithmetic number, because the mean of its divisors is an integer number (20593560960).

Almost surely, 2^{1218013564495} is an apocalyptic number.

1218013564495 is a deficient number, since it is larger than the sum of its proper divisors (758968287665).

1218013564495 is a wasteful number, since it uses less digits than its factorization.

1218013564495 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 390825 (or 390812 counting only the distinct ones).

The product of its (nonzero) digits is 1036800, while the sum is 49.

The spelling of 1218013564495 in words is "one trillion, two hundred eighteen billion, thirteen million, five hundred sixty-four thousand, four hundred ninety-five".