44136144163081 has 2 divisors, whose sum is σ = 44136144163082. Its totient is φ = 44136144163080.

The previous prime is 44136144163061. The next prime is 44136144163187. The reversal of 44136144163081 is 18036144163144.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 37460018370681 + 6676125792400 = 6120459^2 + 2583820^2 .

It is a cyclic number.

It is not a de Polignac number, because 44136144163081 - 2³⁹ = 43586388349193 is a prime.

It is a super-2 number, since 2×44136144163081² (a number of 28 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (44136144163061) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 22068072081540 + 22068072081541.

It is an arithmetic number, because the mean of its divisors is an integer number (22068072081541).

Almost surely, 2^{44136144163081} is an apocalyptic number.

It is an amenable number.

44136144163081 is a deficient number, since it is larger than the sum of its proper divisors (1).

44136144163081 is an equidigital number, since it uses as much as digits as its factorization.

44136144163081 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 663552, while the sum is 46.

The spelling of 44136144163081 in words is "forty-four trillion, one hundred thirty-six billion, one hundred forty-four million, one hundred sixty-three thousand, eighty-one".