1363385556128 has 48 divisors (see below), whose sum is σ = 2736955879560. Its totient is φ = 668305837056.

The previous prime is 1363385556119. The next prime is 1363385556133. The reversal of 1363385556128 is 8216555833631.

It can be written as a sum of positive squares in 4 ways, for example, as 1341733022224 + 21652533904 = 1158332^2 + 147148^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1851038 + ... + 2480546.

Almost surely, 2^{1363385556128} 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 1363385556128, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1368477939780).

1363385556128 is an abundant number, since it is smaller than the sum of its proper divisors (1373570323432).

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

1363385556128 is a wasteful number, since it uses less digits than its factorization.

1363385556128 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 630849 (or 630841 counting only the distinct ones).

The product of its digits is 15552000, while the sum is 56.

The spelling of 1363385556128 in words is "one trillion, three hundred sixty-three billion, three hundred eighty-five million, five hundred fifty-six thousand, one hundred twenty-eight".