545411221323 has 16 divisors (see below), whose sum is σ = 773060029056. Its totient is φ = 340855376000.

The previous prime is 545411221321. The next prime is 545411221339. The reversal of 545411221323 is 323122114545.

It is a cyclic number.

It is not a de Polignac number, because 545411221323 - 2¹ = 545411221321 is a prime.

It is not an unprimeable number, because it can be changed into a prime (545411221321) 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, 21290661 + ... + 21316262.

It is an arithmetic number, because the mean of its divisors is an integer number (48316251816).

Almost surely, 2^545411221323 is an apocalyptic number.

545411221323 is a deficient number, since it is larger than the sum of its proper divisors (227648807733).

545411221323 is a wasteful number, since it uses less digits than its factorization.

545411221323 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 42607194.

The product of its digits is 28800, while the sum is 33.

Adding to 545411221323 its reverse (323122114545), we get a palindrome (868533335868).

The spelling of 545411221323 in words is "five hundred forty-five billion, four hundred eleven million, two hundred twenty-one thousand, three hundred twenty-three".