11663243140461 has 16 divisors (see below), whose sum is σ = 16964780313600. Its totient is φ = 7068605948720.

The previous prime is 11663243140399. The next prime is 11663243140501. The reversal of 11663243140461 is 16404134236611.

It is a cyclic number.

It is not a de Polignac number, because 11663243140461 - 2⁷ = 11663243140333 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11663203140461) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 12009340 + ... + 12944138.

It is an arithmetic number, because the mean of its divisors is an integer number (1060298769600).

Almost surely, 2^{11663243140461} is an apocalyptic number.

11663243140461 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

11663243140461 is a deficient number, since it is larger than the sum of its proper divisors (5301537173139).

11663243140461 is a wasteful number, since it uses less digits than its factorization.

11663243140461 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1312896.

The product of its (nonzero) digits is 248832, while the sum is 42.

The spelling of 11663243140461 in words is "eleven trillion, six hundred sixty-three billion, two hundred forty-three million, one hundred forty thousand, four hundred sixty-one".