545331444520 has 64 divisors (see below), whose sum is σ = 1274964618240. Its totient is φ = 209697984000.

The previous prime is 545331444517. The next prime is 545331444521. The reversal of 545331444520 is 25444133545.

It is a super-3 number, since 3×545331444520³ (a number of 36 digits) contains 333 as substring.

It is a Harshad number since it is a multiple of its sum of digits (40).

It is not an unprimeable number, because it can be changed into a prime (545331444521) 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, 1268997 + ... + 1643476.

It is an arithmetic number, because the mean of its divisors is an integer number (19921322160).

Almost surely, 2^545331444520 is an apocalyptic number.

It is an amenable number.

545331444520 is an abundant number, since it is smaller than the sum of its proper divisors (729633173720).

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

545331444520 is a wasteful number, since it uses less digits than its factorization.

545331444520 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2912666 (or 2912662 counting only the distinct ones).

The product of its (nonzero) digits is 576000, while the sum is 40.

The spelling of 545331444520 in words is "five hundred forty-five billion, three hundred thirty-one million, four hundred forty-four thousand, five hundred twenty".