1361202242256 has 30 divisors (see below), whose sum is σ = 3809475720050. Its totient is φ = 453734080704.

The previous prime is 1361202242207. The next prime is 1361202242269. The reversal of 1361202242256 is 6522422021631.

1361202242256 is a `hidden beast` number, since 1 + 361 + 2 + 0 + 2 + 2 + 42 + 256 = 666.

It can be written as a sum of positive squares in only one way, i.e., 1158507795600 + 202694446656 = 1076340^2 + 450216^2 .

It is a super-2 number, since 2×1361202242256² (a number of 25 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a self number, because there is not a number n which added to its sum of digits gives 1361202242256.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 4726396531 + ... + 4726396818.

Almost surely, 2^{1361202242256} is an apocalyptic number.

1361202242256 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

It is an amenable number.

1361202242256 is an abundant number, since it is smaller than the sum of its proper divisors (2448273477794).

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

1361202242256 is a wasteful number, since it uses less digits than its factorization.

1361202242256 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9452793363 (or 9452793354 counting only the distinct ones).

The product of its (nonzero) digits is 69120, while the sum is 36.

Adding to 1361202242256 its reverse (6522422021631), we get a palindrome (7883624263887).

The spelling of 1361202242256 in words is "one trillion, three hundred sixty-one billion, two hundred two million, two hundred forty-two thousand, two hundred fifty-six".