545215553444 has 12 divisors (see below), whose sum is σ = 954163163184. Its totient is φ = 272597506824.

The previous prime is 545215553437. The next prime is 545215553447. The reversal of 545215553444 is 444355512545.

It is a happy number.

It is a super-3 number, since 3×545215553444³ (a number of 36 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is not an unprimeable number, because it can be changed into a prime (545215553447) 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, 2447402 + ... + 2660865.

It is an arithmetic number, because the mean of its divisors is an integer number (79513596932).

Almost surely, 2^545215553444 is an apocalyptic number.

It is an amenable number.

545215553444 is a deficient number, since it is larger than the sum of its proper divisors (408947609740).

545215553444 is a wasteful number, since it uses less digits than its factorization.

545215553444 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5134954 (or 5134952 counting only the distinct ones).

The product of its digits is 4800000, while the sum is 47.

The spelling of 545215553444 in words is "five hundred forty-five billion, two hundred fifteen million, five hundred fifty-three thousand, four hundred forty-four".