123545022315555 has 16 divisors (see below), whose sum is σ = 204488312798880. Its totient is φ = 63618586203648.

The previous prime is 123545022315527. The next prime is 123545022315581. The reversal of 123545022315555 is 555513220545321.

It is not a de Polignac number, because 123545022315555 - 2³¹ = 123542874831907 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 142005772342 + ... + 142005773211.

It is an arithmetic number, because the mean of its divisors is an integer number (12780519549930).

Almost surely, 2^{123545022315555} is an apocalyptic number.

123545022315555 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

123545022315555 is a deficient number, since it is larger than the sum of its proper divisors (80943290483325).

123545022315555 is a wasteful number, since it uses less digits than its factorization.

123545022315555 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 284011545590.

The product of its (nonzero) digits is 4500000, while the sum is 48.

The spelling of 123545022315555 in words is "one hundred twenty-three trillion, five hundred forty-five billion, twenty-two million, three hundred fifteen thousand, five hundred fifty-five".