1440442551167 has 2 divisors, whose sum is σ = 1440442551168. Its totient is φ = 1440442551166.

The previous prime is 1440442551151. The next prime is 1440442551199. The reversal of 1440442551167 is 7611552440441.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 1440442551167 - 2⁴ = 1440442551151 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1440442550167) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 720221275583 + 720221275584.

It is an arithmetic number, because the mean of its divisors is an integer number (720221275584).

Almost surely, 2^{1440442551167} is an apocalyptic number.

1440442551167 is a deficient number, since it is larger than the sum of its proper divisors (1).

1440442551167 is an equidigital number, since it uses as much as digits as its factorization.

1440442551167 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 537600, while the sum is 44.

The spelling of 1440442551167 in words is "one trillion, four hundred forty billion, four hundred forty-two million, five hundred fifty-one thousand, one hundred sixty-seven".