1234555415455 has 12 divisors (see below), whose sum is σ = 1534313108952. Its totient is φ = 953587628000.

The previous prime is 1234555415369. The next prime is 1234555415459. The reversal of 1234555415455 is 5545145554321.

It is not a de Polignac number, because 1234555415455 - 2⁹ = 1234555414943 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1234555415399 and 1234555415408.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1234555415459) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 146791921 + ... + 146800330.

It is an arithmetic number, because the mean of its divisors is an integer number (127859425746).

Almost surely, 2^{1234555415455} is an apocalyptic number.

1234555415455 is a deficient number, since it is larger than the sum of its proper divisors (299757693497).

1234555415455 is an equidigital number, since it uses as much as digits as its factorization.

1234555415455 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 293592314 (or 293592285 counting only the distinct ones).

The product of its digits is 6000000, while the sum is 49.

The spelling of 1234555415455 in words is "one trillion, two hundred thirty-four billion, five hundred fifty-five million, four hundred fifteen thousand, four hundred fifty-five".