11816605323629 has 2 divisors, whose sum is σ = 11816605323630. Its totient is φ = 11816605323628.

The previous prime is 11816605323571. The next prime is 11816605323659. The reversal of 11816605323629 is 92632350661811.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 8000044549225 + 3816560774404 = 2828435^2 + 1953602^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-11816605323629 is a prime.

It is a super-2 number, since 2×11816605323629² (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 (11816605323659) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5908302661814 + 5908302661815.

It is an arithmetic number, because the mean of its divisors is an integer number (5908302661815).

Almost surely, 2^{11816605323629} is an apocalyptic number.

It is an amenable number.

11816605323629 is a deficient number, since it is larger than the sum of its proper divisors (1).

11816605323629 is an equidigital number, since it uses as much as digits as its factorization.

11816605323629 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 2799360, while the sum is 53.

The spelling of 11816605323629 in words is "eleven trillion, eight hundred sixteen billion, six hundred five million, three hundred twenty-three thousand, six hundred twenty-nine".