1663885344099 has 8 divisors (see below), whose sum is σ = 2420196864192. Its totient is φ = 1008415360040.

The previous prime is 1663885344091. The next prime is 1663885344103. The reversal of 1663885344099 is 9904435883661.

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

It is not a de Polignac number, because 1663885344099 - 2³ = 1663885344091 is a prime.

It is not an unprimeable number, because it can be changed into a prime (1663885344091) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 25210383969 + ... + 25210384034.

It is an arithmetic number, because the mean of its divisors is an integer number (302524608024).

Almost surely, 2^{1663885344099} is an apocalyptic number.

1663885344099 is a deficient number, since it is larger than the sum of its proper divisors (756311520093).

1663885344099 is a wasteful number, since it uses less digits than its factorization.

1663885344099 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 50420768017.

The product of its (nonzero) digits is 134369280, while the sum is 66.

The spelling of 1663885344099 in words is "one trillion, six hundred sixty-three billion, eight hundred eighty-five million, three hundred forty-four thousand, ninety-nine".