1440606200081 has 2 divisors, whose sum is σ = 1440606200082. Its totient is φ = 1440606200080.

The previous prime is 1440606200041. The next prime is 1440606200171. The reversal of 1440606200081 is 1800026060441.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1282646851600 + 157959348481 = 1132540^2 + 397441^2 .

It is a cyclic number.

It is not a de Polignac number, because 1440606200081 - 2⁶ = 1440606200017 is a prime.

It is a super-2 number, since 2×1440606200081² (a number of 25 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (1440606200041) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 720303100040 + 720303100041.

It is an arithmetic number, because the mean of its divisors is an integer number (720303100041).

Almost surely, 2^{1440606200081} is an apocalyptic number.

It is an amenable number.

1440606200081 is a deficient number, since it is larger than the sum of its proper divisors (1).

1440606200081 is an equidigital number, since it uses as much as digits as its factorization.

1440606200081 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 9216, while the sum is 32.

The spelling of 1440606200081 in words is "one trillion, four hundred forty billion, six hundred six million, two hundred thousand, eighty-one".