1052665018681 has 2 divisors, whose sum is σ = 1052665018682. Its totient is φ = 1052665018680.

The previous prime is 1052665018621. The next prime is 1052665018711. The reversal of 1052665018681 is 1868105662501.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1033973754025 + 18691264656 = 1016845^2 + 136716^2 .

It is a cyclic number.

It is not a de Polignac number, because 1052665018681 - 2¹⁵ = 1052664985913 is a prime.

It is a super-2 number, since 2×1052665018681² (a number of 25 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (1052665018621) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 526332509340 + 526332509341.

It is an arithmetic number, because the mean of its divisors is an integer number (526332509341).

Almost surely, 2^{1052665018681} is an apocalyptic number.

It is an amenable number.

1052665018681 is a deficient number, since it is larger than the sum of its proper divisors (1).

1052665018681 is an equidigital number, since it uses as much as digits as its factorization.

1052665018681 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 691200, while the sum is 49.

The spelling of 1052665018681 in words is "one trillion, fifty-two billion, six hundred sixty-five million, eighteen thousand, six hundred eighty-one".