2118119543965 has 8 divisors (see below), whose sum is σ = 2542334994360. Its totient is φ = 1694101274112.

The previous prime is 2118119543929. The next prime is 2118119543989. The reversal of 2118119543965 is 5693459118112.

It can be written as a sum of positive squares in 4 ways, for example, as 529014747556 + 1589104796409 = 727334^2 + 1260597^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 2118119543965 - 2⁹ = 2118119543453 is a prime.

It is a congruent number.

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, 49271500 + ... + 49314469.

It is an arithmetic number, because the mean of its divisors is an integer number (317791874295).

Almost surely, 2^{2118119543965} is an apocalyptic number.

It is an amenable number.

2118119543965 is a deficient number, since it is larger than the sum of its proper divisors (424215450395).

2118119543965 is an equidigital number, since it uses as much as digits as its factorization.

2118119543965 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 98590271.

The product of its digits is 2332800, while the sum is 55.

The spelling of 2118119543965 in words is "two trillion, one hundred eighteen billion, one hundred nineteen million, five hundred forty-three thousand, nine hundred sixty-five".