1663345259763 has 8 divisors (see below), whose sum is σ = 2419411286976. Its totient is φ = 1008088036200.

The previous prime is 1663345259761. The next prime is 1663345259789. The reversal of 1663345259763 is 3679525433661.

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

It is not a de Polignac number, because 1663345259763 - 2¹ = 1663345259761 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 1663345259697 and 1663345259706.

It is not an unprimeable number, because it can be changed into a prime (1663345259761) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 25202200873 + ... + 25202200938.

It is an arithmetic number, because the mean of its divisors is an integer number (302426410872).

Almost surely, 2^{1663345259763} is an apocalyptic number.

1663345259763 is a deficient number, since it is larger than the sum of its proper divisors (756066027213).

1663345259763 is a wasteful number, since it uses less digits than its factorization.

1663345259763 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 50404401825.

The product of its digits is 73483200, while the sum is 60.

The spelling of 1663345259763 in words is "one trillion, six hundred sixty-three billion, three hundred forty-five million, two hundred fifty-nine thousand, seven hundred sixty-three".