1067655701081 has 2 divisors, whose sum is σ = 1067655701082. Its totient is φ = 1067655701080.

The previous prime is 1067655701071. The next prime is 1067655701089. The reversal of 1067655701081 is 1801075567601.

1067655701081 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 611367610000 + 456288091081 = 781900^2 + 675491^2 .

It is a cyclic number.

It is not a de Polignac number, because 1067655701081 - 2³⁰ = 1066581959257 is a prime.

It is a super-2 number, since 2×1067655701081² (a number of 25 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (1067655701089) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 533827850540 + 533827850541.

It is an arithmetic number, because the mean of its divisors is an integer number (533827850541).

Almost surely, 2^{1067655701081} is an apocalyptic number.

It is an amenable number.

1067655701081 is a deficient number, since it is larger than the sum of its proper divisors (1).

1067655701081 is an equidigital number, since it uses as much as digits as its factorization.

1067655701081 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 352800, while the sum is 47.

The spelling of 1067655701081 in words is "one trillion, sixty-seven billion, six hundred fifty-five million, seven hundred one thousand, eighty-one".