11555061601469 has 2 divisors, whose sum is σ = 11555061601470. Its totient is φ = 11555061601468.

The previous prime is 11555061601417. The next prime is 11555061601513. The reversal of 11555061601469 is 96410616055511.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 8025690691225 + 3529370910244 = 2832965^2 + 1878662^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-11555061601469 is a prime.

It is a super-2 number, since 2×11555061601469² (a number of 27 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (11555061603469) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5777530800734 + 5777530800735.

It is an arithmetic number, because the mean of its divisors is an integer number (5777530800735).

Almost surely, 2^{11555061601469} is an apocalyptic number.

It is an amenable number.

11555061601469 is a deficient number, since it is larger than the sum of its proper divisors (1).

11555061601469 is an equidigital number, since it uses as much as digits as its factorization.

11555061601469 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 972000, while the sum is 50.

The spelling of 11555061601469 in words is "eleven trillion, five hundred fifty-five billion, sixty-one million, six hundred one thousand, four hundred sixty-nine".