1608219580440 has 128 divisors (see below), whose sum is σ = 5341820555520. Its totient is φ = 384052416000.

The previous prime is 1608219580369. The next prime is 1608219580493. The reversal of 1608219580440 is 440859128061.

It is a self number, because there is not a number n which added to its sum of digits gives 1608219580440.

It is a congruent number.

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, 9003711 + ... + 9180590.

It is an arithmetic number, because the mean of its divisors is an integer number (41732973090).

Almost surely, 2^{1608219580440} is an apocalyptic number.

1608219580440 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1608219580440 is an abundant number, since it is smaller than the sum of its proper divisors (3733600975080).

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

1608219580440 is a wasteful number, since it uses less digits than its factorization.

1608219580440 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18184393 (or 18184389 counting only the distinct ones).

The product of its (nonzero) digits is 552960, while the sum is 48.

The spelling of 1608219580440 in words is "one trillion, six hundred eight billion, two hundred nineteen million, five hundred eighty thousand, four hundred forty".