1218622013496 has 80 divisors (see below), whose sum is σ = 3414451035600. Its totient is φ = 406066784256.

The previous prime is 1218622013443. The next prime is 1218622013507. The reversal of 1218622013496 is 6943102268121.

1218622013496 is a `hidden beast` number, since 1 + 2 + 1 + 8 + 622 + 0 + 13 + 4 + 9 + 6 = 666.

It is a super-2 number, since 2×1218622013496² (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 (17) of ones.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 1557240 + ... + 2205048.

It is an arithmetic number, because the mean of its divisors is an integer number (42680637945).

Almost surely, 2^{1218622013496} is an apocalyptic number.

It is an amenable number.

1218622013496 is an abundant number, since it is smaller than the sum of its proper divisors (2195829022104).

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

1218622013496 is a wasteful number, since it uses less digits than its factorization.

1218622013496 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 650730 (or 650717 counting only the distinct ones).

The product of its (nonzero) digits is 248832, while the sum is 45.

The spelling of 1218622013496 in words is "one trillion, two hundred eighteen billion, six hundred twenty-two million, thirteen thousand, four hundred ninety-six".