545510220454 has 4 divisors (see below), whose sum is σ = 818265330684. Its totient is φ = 272755110226.

The previous prime is 545510220419. The next prime is 545510220469. The reversal of 545510220454 is 454022015545.

It is a semiprime because it is the product of two primes.

It is a super-2 number, since 2×545510220454² (a number of 24 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 136377555112 + ... + 136377555115.

It is an arithmetic number, because the mean of its divisors is an integer number (204566332671).

Almost surely, 2^545510220454 is an apocalyptic number.

545510220454 is a deficient number, since it is larger than the sum of its proper divisors (272755110230).

545510220454 is a wasteful number, since it uses less digits than its factorization.

545510220454 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 272755110229.

The product of its (nonzero) digits is 160000, while the sum is 37.

Adding to 545510220454 its reverse (454022015545), we get a palindrome (999532235999).

The spelling of 545510220454 in words is "five hundred forty-five billion, five hundred ten million, two hundred twenty thousand, four hundred fifty-four".