1352551123661 has 2 divisors, whose sum is σ = 1352551123662. Its totient is φ = 1352551123660.

The previous prime is 1352551123657. The next prime is 1352551123697. The reversal of 1352551123661 is 1663211552531.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1240537074436 + 112014049225 = 1113794^2 + 334685^2 .

It is a cyclic number.

It is not a de Polignac number, because 1352551123661 - 2² = 1352551123657 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1352551123631) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 676275561830 + 676275561831.

It is an arithmetic number, because the mean of its divisors is an integer number (676275561831).

Almost surely, 2^{1352551123661} is an apocalyptic number.

It is an amenable number.

1352551123661 is a deficient number, since it is larger than the sum of its proper divisors (1).

1352551123661 is an equidigital number, since it uses as much as digits as its factorization.

1352551123661 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 162000, while the sum is 41.

The spelling of 1352551123661 in words is "one trillion, three hundred fifty-two billion, five hundred fifty-one million, one hundred twenty-three thousand, six hundred sixty-one".