122543436653 has 16 divisors (see below), whose sum is σ = 135415634112. Its totient is φ = 109966560000.

The previous prime is 122543436593. The next prime is 122543436671. The reversal of 122543436653 is 356634345221.

It is a happy number.

It is not a de Polignac number, because 122543436653 - 2¹⁰ = 122543435629 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (122543496653) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 201125 + ... + 534357.

It is an arithmetic number, because the mean of its divisors is an integer number (8463477132).

Almost surely, 2^122543436653 is an apocalyptic number.

It is an amenable number.

122543436653 is a deficient number, since it is larger than the sum of its proper divisors (12872197459).

122543436653 is a wasteful number, since it uses less digits than its factorization.

122543436653 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 333676.

The product of its digits is 1555200, while the sum is 44.

The spelling of 122543436653 in words is "one hundred twenty-two billion, five hundred forty-three million, four hundred thirty-six thousand, six hundred fifty-three".