134061253242561 has 24 divisors (see below), whose sum is σ = 203846973668000. Its totient is φ = 84665633657472.

The previous prime is 134061253242493. The next prime is 134061253242731. The reversal of 134061253242561 is 165242352160431.

134061253242561 is a `hidden beast` number, since 1 + 3 + 4 + 0 + 6 + 12 + 5 + 32 + 42 + 561 = 666.

It is not a de Polignac number, because 134061253242561 - 2¹¹ = 134061253240513 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (134061253242461) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 18305791 + ... + 24560628.

Almost surely, 2^{134061253242561} is an apocalyptic number.

It is an amenable number.

134061253242561 is a deficient number, since it is larger than the sum of its proper divisors (69785720425439).

134061253242561 is a wasteful number, since it uses less digits than its factorization.

134061253242561 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 42884733 (or 42884730 counting only the distinct ones).

The product of its (nonzero) digits is 1036800, while the sum is 45.

The spelling of 134061253242561 in words is "one hundred thirty-four trillion, sixty-one billion, two hundred fifty-three million, two hundred forty-two thousand, five hundred sixty-one".