545223451023 has 16 divisors (see below), whose sum is σ = 809537436000. Its totient is φ = 362672755200.

The previous prime is 545223450911. The next prime is 545223451027. The reversal of 545223451023 is 320154322545.

545223451023 is a `hidden beast` number, since 54 + 52 + 23 + 4 + 510 + 23 = 666.

It is not a de Polignac number, because 545223451023 - 2⁹ = 545223450511 is a prime.

It is a super-2 number, since 2×545223451023² (a number of 24 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (545223451027) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 22475028 + ... + 22499273.

It is an arithmetic number, because the mean of its divisors is an integer number (50596089750).

Almost surely, 2^545223451023 is an apocalyptic number.

545223451023 is a deficient number, since it is larger than the sum of its proper divisors (264313984977).

545223451023 is a wasteful number, since it uses less digits than its factorization.

545223451023 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 44974759 (or 44974753 counting only the distinct ones).

The product of its (nonzero) digits is 144000, while the sum is 36.

Adding to 545223451023 its reverse (320154322545), we get a palindrome (865377773568).

The spelling of 545223451023 in words is "five hundred forty-five billion, two hundred twenty-three million, four hundred fifty-one thousand, twenty-three".