1663552460446 has 8 divisors (see below), whose sum is σ = 2553359590584. Its totient is φ = 812432596920.

The previous prime is 1663552460443. The next prime is 1663552460473. The reversal of 1663552460446 is 6440642553661.

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

It is a junction number, because it is equal to n+sod(n) for n = 1663552460393 and 1663552460402.

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 3 ways as a sum of consecutive naturals, for example, 9671816545 + ... + 9671816716.

It is an arithmetic number, because the mean of its divisors is an integer number (319169948823).

Almost surely, 2^{1663552460446} is an apocalyptic number.

1663552460446 is a deficient number, since it is larger than the sum of its proper divisors (889807130138).

1663552460446 is a wasteful number, since it uses less digits than its factorization.

1663552460446 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19343633306.

The product of its (nonzero) digits is 12441600, while the sum is 52.

The spelling of 1663552460446 in words is "one trillion, six hundred sixty-three billion, five hundred fifty-two million, four hundred sixty thousand, four hundred forty-six".