545644512 has 480 divisors, whose sum is σ = 2041744320. Its totient is φ = 139345920.

The previous prime is 545644511. The next prime is 545644543. The reversal of 545644512 is 215446545.

545644512 is a `hidden beast` number, since 5 + 4 + 5 + 644 + 5 + 1 + 2 = 666.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (545644511) by changing a digit.

It is a polite number, since it can be written in 79 ways as a sum of consecutive naturals, for example, 8944962 + ... + 8945022.

It is an arithmetic number, because the mean of its divisors is an integer number (4253634).

Almost surely, 2^545644512 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 545644512, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1020872160).

545644512 is an abundant number, since it is smaller than the sum of its proper divisors (1496099808).

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

545644512 is a wasteful number, since it uses less digits than its factorization.

545644512 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 136 (or 119 counting only the distinct ones).

The product of its digits is 96000, while the sum is 36.

The square root of 545644512 is about 23359.0349115712. The cubic root of 545644512 is about 817.1527824349.

The spelling of 545644512 in words is "five hundred forty-five million, six hundred forty-four thousand, five hundred twelve".