1361206103508 has 36 divisors (see below), whose sum is σ = 3441007210368. Its totient is φ = 453711543120.

The previous prime is 1361206103503. The next prime is 1361206103533. The reversal of 1361206103508 is 8053016021631.

1361206103508 is a `hidden beast` number, since 1 + 3 + 6 + 1 + 2 + 0 + 610 + 35 + 0 + 8 = 666.

It is a tau number, because it is divible by the number of its divisors (36).

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1361206103501) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 290766 + ... + 1675397.

Almost surely, 2^{1361206103508} is an apocalyptic number.

1361206103508 is a gapful number since it is divisible by the number (18) formed by its first and last digit.

It is an amenable number.

1361206103508 is an abundant number, since it is smaller than the sum of its proper divisors (2079801106860).

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

1361206103508 is a wasteful number, since it uses less digits than its factorization.

1361206103508 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1985404 (or 1985399 counting only the distinct ones).

The product of its (nonzero) digits is 25920, while the sum is 36.

The spelling of 1361206103508 in words is "one trillion, three hundred sixty-one billion, two hundred six million, one hundred three thousand, five hundred eight".