11155501655099 has 2 divisors, whose sum is σ = 11155501655100. Its totient is φ = 11155501655098.

The previous prime is 11155501655071. The next prime is 11155501655113. The reversal of 11155501655099 is 99055610555111.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 11155501655099 - 2¹² = 11155501651003 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 11155501655099.

It is not a weakly prime, because it can be changed into another prime (11155501655009) 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 as a sum of consecutive naturals, namely, 5577750827549 + 5577750827550.

It is an arithmetic number, because the mean of its divisors is an integer number (5577750827550).

Almost surely, 2^{11155501655099} is an apocalyptic number.

11155501655099 is a deficient number, since it is larger than the sum of its proper divisors (1).

11155501655099 is an equidigital number, since it uses as much as digits as its factorization.

11155501655099 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1518750, while the sum is 53.

The spelling of 11155501655099 in words is "eleven trillion, one hundred fifty-five billion, five hundred one million, six hundred fifty-five thousand, ninety-nine".