122566343555 has 24 divisors (see below), whose sum is σ = 157058645760. Its totient is φ = 91801871360.

The previous prime is 122566343509. The next prime is 122566343563. The reversal of 122566343555 is 555343665221.

It is not a de Polignac number, because 122566343555 - 2¹⁸ = 122566081411 is a prime.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 53951 + ... + 498039.

It is an arithmetic number, because the mean of its divisors is an integer number (6544110240).

Almost surely, 2^122566343555 is an apocalyptic number.

122566343555 is a deficient number, since it is larger than the sum of its proper divisors (34492302205).

122566343555 is a wasteful number, since it uses less digits than its factorization.

122566343555 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 444319 (or 444302 counting only the distinct ones).

The product of its digits is 3240000, while the sum is 47.

The spelling of 122566343555 in words is "one hundred twenty-two billion, five hundred sixty-six million, three hundred forty-three thousand, five hundred fifty-five".