123255445552355 has 16 divisors (see below), whose sum is σ = 150466519438560. Its totient is φ = 96898879799808.

The previous prime is 123255445552277. The next prime is 123255445552367. The reversal of 123255445552355 is 553255544552321.

It is not a de Polignac number, because 123255445552355 - 2¹⁶ = 123255445486819 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 123255445552355.

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, 72905012 + ... + 74576481.

It is an arithmetic number, because the mean of its divisors is an integer number (9404157464910).

Almost surely, 2^{123255445552355} is an apocalyptic number.

123255445552355 is a deficient number, since it is larger than the sum of its proper divisors (27211073886205).

123255445552355 is a wasteful number, since it uses less digits than its factorization.

123255445552355 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 147484390.

The product of its digits is 90000000, while the sum is 56.

The spelling of 123255445552355 in words is "one hundred twenty-three trillion, two hundred fifty-five billion, four hundred forty-five million, five hundred fifty-two thousand, three hundred fifty-five".