123566153322055 has 32 divisors (see below), whose sum is σ = 154865765467008. Its totient is φ = 94469760000000.

The previous prime is 123566153322047. The next prime is 123566153322119. The reversal of 123566153322055 is 550223351665321.

It is not a de Polignac number, because 123566153322055 - 2³ = 123566153322047 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 3294990805 + ... + 3295028305.

It is an arithmetic number, because the mean of its divisors is an integer number (4839555170844).

Almost surely, 2^{123566153322055} is an apocalyptic number.

123566153322055 is a deficient number, since it is larger than the sum of its proper divisors (31299612144953).

123566153322055 is a wasteful number, since it uses less digits than its factorization.

123566153322055 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 62587.

The product of its (nonzero) digits is 4860000, while the sum is 49.

The spelling of 123566153322055 in words is "one hundred twenty-three trillion, five hundred sixty-six billion, one hundred fifty-three million, three hundred twenty-two thousand, fifty-five".