545215124420 has 12 divisors (see below), whose sum is σ = 1144951761324. Its totient is φ = 218086049760.

The previous prime is 545215124401. The next prime is 545215124423. The reversal of 545215124420 is 24421512545.

It can be written as a sum of positive squares in 2 ways, for example, as 119714616004 + 425500508416 = 345998^2 + 652304^2 .

It is not an unprimeable number, because it can be changed into a prime (545215124423) 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, 13630378091 + ... + 13630378130.

It is an arithmetic number, because the mean of its divisors is an integer number (95412646777).

Almost surely, 2^545215124420 is an apocalyptic number.

It is an amenable number.

545215124420 is an abundant number, since it is smaller than the sum of its proper divisors (599736636904).

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

545215124420 is a wasteful number, since it uses less digits than its factorization.

545215124420 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 27260756230 (or 27260756228 counting only the distinct ones).

The product of its (nonzero) digits is 64000, while the sum is 35.

Adding to 545215124420 its reverse (24421512545), we get a palindrome (569636636965).

The spelling of 545215124420 in words is "five hundred forty-five billion, two hundred fifteen million, one hundred twenty-four thousand, four hundred twenty".