1663578289348 has 48 divisors (see below), whose sum is σ = 3021093290880. Its totient is φ = 801004550400.

The previous prime is 1663578289333. The next prime is 1663578289409. The reversal of 1663578289348 is 8439828753661.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3732793 + ... + 4154623.

It is an arithmetic number, because the mean of its divisors is an integer number (62939443560).

Almost surely, 2^{1663578289348} is an apocalyptic number.

It is an amenable number.

1663578289348 is a deficient number, since it is larger than the sum of its proper divisors (1357515001532).

1663578289348 is a wasteful number, since it uses less digits than its factorization.

1663578289348 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 422188 (or 422186 counting only the distinct ones).

The product of its digits is 418037760, while the sum is 70.

The spelling of 1663578289348 in words is "one trillion, six hundred sixty-three billion, five hundred seventy-eight million, two hundred eighty-nine thousand, three hundred forty-eight".