1816560043248 has 20 divisors (see below), whose sum is σ = 4692780111848. Its totient is φ = 605520014400.

The previous prime is 1816560043231. The next prime is 1816560043253. The reversal of 1816560043248 is 8423400656181.

It is a Smith number, since the sum of its digits (48) coincides with the sum of the digits of its prime factors.

It is a Harshad number since it is a multiple of its sum of digits (48), and also a Moran number because the ratio is a prime number: 37845000901 = 1816560043248 / (1 + 8 + 1 + 6 + 5 + 6 + 0 + 0 + 4 + 3 + 2 + 4 + 8).

It is a junction number, because it is equal to n+sod(n) for n = 1816560043197 and 1816560043206.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 18922500403 + ... + 18922500498.

Almost surely, 2^{1816560043248} is an apocalyptic number.

It is an amenable number.

1816560043248 is an abundant number, since it is smaller than the sum of its proper divisors (2876220068600).

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

1816560043248 is a wasteful number, since it uses less digits than its factorization.

1816560043248 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 37845000912 (or 37845000906 counting only the distinct ones).

The product of its (nonzero) digits is 1105920, while the sum is 48.

The spelling of 1816560043248 in words is "one trillion, eight hundred sixteen billion, five hundred sixty million, forty-three thousand, two hundred forty-eight".