11655540113491 has 2 divisors, whose sum is σ = 11655540113492. Its totient is φ = 11655540113490.

The previous prime is 11655540113449. The next prime is 11655540113639. The reversal of 11655540113491 is 19431104555611.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 11655540113491 - 2¹⁷ = 11655539982419 is a prime.

It is not a weakly prime, because it can be changed into another prime (11655540183491) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5827770056745 + 5827770056746.

It is an arithmetic number, because the mean of its divisors is an integer number (5827770056746).

Almost surely, 2^{11655540113491} is an apocalyptic number.

11655540113491 is a deficient number, since it is larger than the sum of its proper divisors (1).

11655540113491 is an equidigital number, since it uses as much as digits as its factorization.

11655540113491 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 324000, while the sum is 46.

The spelling of 11655540113491 in words is "eleven trillion, six hundred fifty-five billion, five hundred forty million, one hundred thirteen thousand, four hundred ninety-one".