545565674221544 has 16 divisors (see below), whose sum is σ = 1055933563009920. Its totient is φ = 263983390752240.

The previous prime is 545565674221541. The next prime is 545565674221571. The reversal of 545565674221544 is 445122476565545.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (545565674221541) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1099930794554 + ... + 1099930795049.

It is an arithmetic number, because the mean of its divisors is an integer number (65995847688120).

Almost surely, 2^{545565674221544} is an apocalyptic number.

It is an amenable number.

545565674221544 is a deficient number, since it is larger than the sum of its proper divisors (510367888788376).

545565674221544 is a wasteful number, since it uses less digits than its factorization.

545565674221544 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2199861589640 (or 2199861589636 counting only the distinct ones).

The product of its digits is 806400000, while the sum is 65.

The spelling of 545565674221544 in words is "five hundred forty-five trillion, five hundred sixty-five billion, six hundred seventy-four million, two hundred twenty-one thousand, five hundred forty-four".