1355443734256 has 80 divisors (see below), whose sum is σ = 2910321370368. Its totient is φ = 608278809600.

The previous prime is 1355443734199. The next prime is 1355443734301. The reversal of 1355443734256 is 6524373445531.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1743451 + ... + 2398021.

Almost surely, 2^{1355443734256} is an apocalyptic number.

1355443734256 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1355443734256, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1455160685184).

1355443734256 is an abundant number, since it is smaller than the sum of its proper divisors (1554877636112).

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

1355443734256 is a wasteful number, since it uses less digits than its factorization.

1355443734256 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 654950 (or 654944 counting only the distinct ones).

The product of its digits is 18144000, while the sum is 52.

The spelling of 1355443734256 in words is "one trillion, three hundred fifty-five billion, four hundred forty-three million, seven hundred thirty-four thousand, two hundred fifty-six".