545452023444 has 12 divisors (see below), whose sum is σ = 1272721388064. Its totient is φ = 181817341144.

The previous prime is 545452023433. The next prime is 545452023451. The reversal of 545452023444 is 444320254545.

It is a tau number, because it is divible by the number of its divisors (12).

It is a super-2 number, since 2×545452023444² (a number of 24 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 545452023396 and 545452023405.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 22727167632 + ... + 22727167655.

It is an arithmetic number, because the mean of its divisors is an integer number (106060115672).

Almost surely, 2^545452023444 is an apocalyptic number.

It is an amenable number.

545452023444 is an abundant number, since it is smaller than the sum of its proper divisors (727269364620).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

545452023444 is a wasteful number, since it uses less digits than its factorization.

545452023444 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 45454335294 (or 45454335292 counting only the distinct ones).

The product of its (nonzero) digits is 1536000, while the sum is 42.

Adding to 545452023444 its reverse (444320254545), we get a palindrome (989772277989).

The spelling of 545452023444 in words is "five hundred forty-five billion, four hundred fifty-two million, twenty-three thousand, four hundred forty-four".