161226625016011 has 2 divisors, whose sum is σ = 161226625016012. Its totient is φ = 161226625016010.

The previous prime is 161226625015931. The next prime is 161226625016033. The reversal of 161226625016011 is 110610526622161.

It is a strong prime.

It is an emirp because it is prime and its reverse (110610526622161) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 161226625016011 - 2²³ = 161226616627403 is a prime.

It is a super-2 number, since 2×161226625016011² (a number of 29 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (161226625014011) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 80613312508005 + 80613312508006.

It is an arithmetic number, because the mean of its divisors is an integer number (80613312508006).

Almost surely, 2^{161226625016011} is an apocalyptic number.

161226625016011 is a deficient number, since it is larger than the sum of its proper divisors (1).

161226625016011 is an equidigital number, since it uses as much as digits as its factorization.

161226625016011 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 51840, while the sum is 40.

The spelling of 161226625016011 in words is "one hundred sixty-one trillion, two hundred twenty-six billion, six hundred twenty-five million, sixteen thousand, eleven".