545515515545 has 96 divisors (see below), whose sum is σ = 923484312576. Its totient is φ = 303776524800.

The previous prime is 545515515511. The next prime is 545515515547.

545515515545 is nontrivially palindromic in base 10.

It is not a de Polignac number, because 545515515545 - 2⁶ = 545515515481 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 545515515493 and 545515515502.

It is not an unprimeable number, because it can be changed into a prime (545515515547) by changing a digit.

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 95 ways as a sum of consecutive naturals, for example, 834947 + ... + 1337223.

It is an arithmetic number, because the mean of its divisors is an integer number (9619628256).

Almost surely, 2^545515515545 is an apocalyptic number.

545515515545 is a gapful number since it is divisible by the number (55) formed by its first and last digit.

It is an amenable number.

545515515545 is a deficient number, since it is larger than the sum of its proper divisors (377968797031).

545515515545 is a wasteful number, since it uses less digits than its factorization.

545515515545 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 502351 (or 502344 counting only the distinct ones).

The product of its digits is 6250000, while the sum is 50.

The spelling of 545515515545 in words is "five hundred forty-five billion, five hundred fifteen million, five hundred fifteen thousand, five hundred forty-five".