1553283405663 has 32 divisors (see below), whose sum is σ = 2343237811200. Its totient is φ = 906585590400.

The previous prime is 1553283405647. The next prime is 1553283405731. The reversal of 1553283405663 is 3665043823551.

It is not a de Polignac number, because 1553283405663 - 2⁴ = 1553283405647 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1553283405613) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1713943 + ... + 2458488.

It is an arithmetic number, because the mean of its divisors is an integer number (73226181600).

Almost surely, 2^{1553283405663} is an apocalyptic number.

1553283405663 is a deficient number, since it is larger than the sum of its proper divisors (789954405537).

1553283405663 is a wasteful number, since it uses less digits than its factorization.

1553283405663 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4172863.

The product of its (nonzero) digits is 7776000, while the sum is 51.

The spelling of 1553283405663 in words is "one trillion, five hundred fifty-three billion, two hundred eighty-three million, four hundred five thousand, six hundred sixty-three".