1363740136661 has 8 divisors (see below), whose sum is σ = 1558569857664. Its totient is φ = 1168912841040.

The previous prime is 1363740136609. The next prime is 1363740136739. The reversal of 1363740136661 is 1666310473631.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 1363740136661 - 2¹⁴ = 1363740120277 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1363740136261) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 823256 + ... + 1845326.

It is an arithmetic number, because the mean of its divisors is an integer number (194821232208).

Almost surely, 2^{1363740136661} is an apocalyptic number.

It is an amenable number.

1363740136661 is a deficient number, since it is larger than the sum of its proper divisors (194829721003).

1363740136661 is a wasteful number, since it uses less digits than its factorization.

1363740136661 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1212691.

The product of its (nonzero) digits is 979776, while the sum is 47.

The spelling of 1363740136661 in words is "one trillion, three hundred sixty-three billion, seven hundred forty million, one hundred thirty-six thousand, six hundred sixty-one".