1663552460447 has 16 divisors (see below), whose sum is σ = 1704237760512. Its totient is φ = 1623091901760.

The previous prime is 1663552460443. The next prime is 1663552460473. The reversal of 1663552460447 is 7440642553661.

It is a cyclic number.

It is not a de Polignac number, because 1663552460447 - 2² = 1663552460443 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1663552460441) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 37545947 + ... + 37590227.

It is an arithmetic number, because the mean of its divisors is an integer number (106514860032).

Almost surely, 2^{1663552460447} is an apocalyptic number.

1663552460447 is a deficient number, since it is larger than the sum of its proper divisors (40685300065).

1663552460447 is a wasteful number, since it uses less digits than its factorization.

1663552460447 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 46798.

The product of its (nonzero) digits is 14515200, while the sum is 53.

The spelling of 1663552460447 in words is "one trillion, six hundred sixty-three billion, five hundred fifty-two million, four hundred sixty thousand, four hundred forty-seven".