545551155545 has 64 divisors (see below), whose sum is σ = 746789621760. Its totient is φ = 379097280000.

The previous prime is 545551155533. The next prime is 545551155571.

545551155545 is nontrivially palindromic in base 10.

It is not a de Polignac number, because 545551155545 - 2⁶ = 545551155481 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 545551155493 and 545551155502.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 36047630 + ... + 36062760.

It is an arithmetic number, because the mean of its divisors is an integer number (11668587840).

Almost surely, 2^545551155545 is an apocalyptic number.

545551155545 is a gapful number since it is divisible by the number (55) formed by its first and last digit.

It is an amenable number.

545551155545 is a deficient number, since it is larger than the sum of its proper divisors (201238466215).

545551155545 is a wasteful number, since it uses less digits than its factorization.

545551155545 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15518.

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

The spelling of 545551155545 in words is "five hundred forty-five billion, five hundred fifty-one million, one hundred fifty-five thousand, five hundred forty-five".