11555201698811 has 2 divisors, whose sum is σ = 11555201698812. Its totient is φ = 11555201698810.

The previous prime is 11555201698763. The next prime is 11555201698819. The reversal of 11555201698811 is 11889610255511.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 11555201698811 - 2³⁴ = 11538021829627 is a prime.

It is not a weakly prime, because it can be changed into another prime (11555201698819) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5777600849405 + 5777600849406.

It is an arithmetic number, because the mean of its divisors is an integer number (5777600849406).

Almost surely, 2^{11555201698811} is an apocalyptic number.

11555201698811 is a deficient number, since it is larger than the sum of its proper divisors (1).

11555201698811 is an equidigital number, since it uses as much as digits as its factorization.

11555201698811 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 864000, while the sum is 53.

The spelling of 11555201698811 in words is "eleven trillion, five hundred fifty-five billion, two hundred one million, six hundred ninety-eight thousand, eight hundred eleven".