1363155610681 has 4 divisors (see below), whose sum is σ = 1422423245952. Its totient is φ = 1303887975412.

The previous prime is 1363155610673. The next prime is 1363155610787. The reversal of 1363155610681 is 1860165513631.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 1363155610681 - 2³ = 1363155610673 is a prime.

It is a super-2 number, since 2×1363155610681² (a number of 25 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1363155680681) 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 3 ways as a sum of consecutive naturals, for example, 29633817601 + ... + 29633817646.

It is an arithmetic number, because the mean of its divisors is an integer number (355605811488).

Almost surely, 2^{1363155610681} is an apocalyptic number.

It is an amenable number.

1363155610681 is a deficient number, since it is larger than the sum of its proper divisors (59267635271).

1363155610681 is an equidigital number, since it uses as much as digits as its factorization.

1363155610681 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 59267635270.

The product of its (nonzero) digits is 388800, while the sum is 46.

The spelling of 1363155610681 in words is "one trillion, three hundred sixty-three billion, one hundred fifty-five million, six hundred ten thousand, six hundred eighty-one".