3545168148881 has 2 divisors, whose sum is σ = 3545168148882. Its totient is φ = 3545168148880.

The previous prime is 3545168148839. The next prime is 3545168148917. The reversal of 3545168148881 is 1888418615453.

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., 2994426054481 + 550742094400 = 1730441^2 + 742120^2 .

It is a cyclic number.

It is not a de Polignac number, because 3545168148881 - 2⁶ = 3545168148817 is a prime.

It is a super-2 number, since 2×3545168148881² (a number of 26 digits) contains 22 as substring.

It is a Sophie Germain prime.

It is a Curzon number.

It is not a weakly prime, because it can be changed into another prime (3545168148281) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1772584074440 + 1772584074441.

It is an arithmetic number, because the mean of its divisors is an integer number (1772584074441).

Almost surely, 2^{3545168148881} is an apocalyptic number.

It is an amenable number.

3545168148881 is a deficient number, since it is larger than the sum of its proper divisors (1).

3545168148881 is an equidigital number, since it uses as much as digits as its factorization.

3545168148881 is an evil number, because the sum of its binary digits is even.

The product of its digits is 29491200, while the sum is 62.

The spelling of 3545168148881 in words is "three trillion, five hundred forty-five billion, one hundred sixty-eight million, one hundred forty-eight thousand, eight hundred eighty-one".