1663332231744 has 336 divisors, whose sum is σ = 5042037663936. Its totient is φ = 543536179200.

The previous prime is 1663332231731. The next prime is 1663332231809. The reversal of 1663332231744 is 4471322333661.

1663332231744 is a `hidden beast` number, since 1 + 6 + 6 + 3 + 3 + 322 + 317 + 4 + 4 = 666.

It is a super-2 number, since 2×1663332231744² (a number of 25 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 1663332231744.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 300726259 + ... + 300731789.

It is an arithmetic number, because the mean of its divisors is an integer number (15006064476).

Almost surely, 2^{1663332231744} is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1663332231744, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2521018831968).

1663332231744 is an abundant number, since it is smaller than the sum of its proper divisors (3378705432192).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1663332231744 is an equidigital number, since it uses as much as digits as its factorization.

1663332231744 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5936 (or 5914 counting only the distinct ones).

The product of its digits is 1306368, while the sum is 45.

The spelling of 1663332231744 in words is "one trillion, six hundred sixty-three billion, three hundred thirty-two million, two hundred thirty-one thousand, seven hundred forty-four".