545516615545 has 16 divisors (see below), whose sum is σ = 714148192512. Its totient is φ = 396729717760.

The previous prime is 545516615531. The next prime is 545516615551.

545516615545 is nontrivially palindromic in base 10.

It is not a de Polignac number, because 545516615545 - 2⁵ = 545516615513 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 545516615492 and 545516615501.

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, 2802864 + ... + 2991166.

It is an arithmetic number, because the mean of its divisors is an integer number (44634262032).

Almost surely, 2^545516615545 is an apocalyptic number.

545516615545 is a gapful number since it is divisible by the number (55) formed by its first and last digit.

It is an amenable number.

545516615545 is a deficient number, since it is larger than the sum of its proper divisors (168631576967).

545516615545 is a wasteful number, since it uses less digits than its factorization.

545516615545 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 240992.

The product of its digits is 9000000, while the sum is 52.

The spelling of 545516615545 in words is "five hundred forty-five billion, five hundred sixteen million, six hundred fifteen thousand, five hundred forty-five".