11661762425123 has 2 divisors, whose sum is σ = 11661762425124. Its totient is φ = 11661762425122.

The previous prime is 11661762425029. The next prime is 11661762425179. The reversal of 11661762425123 is 32152426716611.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 11661762425123 - 2²⁰ = 11661761376547 is a prime.

It is not a weakly prime, because it can be changed into another prime (11661762475123) 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, 5830881212561 + 5830881212562.

It is an arithmetic number, because the mean of its divisors is an integer number (5830881212562).

Almost surely, 2^{11661762425123} is an apocalyptic number.

11661762425123 is a deficient number, since it is larger than the sum of its proper divisors (1).

11661762425123 is an equidigital number, since it uses as much as digits as its factorization.

11661762425123 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 725760, while the sum is 47.

The spelling of 11661762425123 in words is "eleven trillion, six hundred sixty-one billion, seven hundred sixty-two million, four hundred twenty-five thousand, one hundred twenty-three".