545994216 has 64 divisors (see below), whose sum is σ = 1518739200. Its totient is φ = 181747584.

The previous prime is 545994173. The next prime is 545994277. The reversal of 545994216 is 612499545.

545994216 is a `hidden beast` number, since 5 + 4 + 599 + 42 + 16 = 666.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 221905 + ... + 224351.

It is an arithmetic number, because the mean of its divisors is an integer number (23730300).

Almost surely, 2^545994216 is an apocalyptic number.

It is an amenable number.

545994216 is an abundant number, since it is smaller than the sum of its proper divisors (972744984).

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

545994216 is a wasteful number, since it uses less digits than its factorization.

545994216 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3495 (or 3485 counting only the distinct ones).

The product of its digits is 388800, while the sum is 45.

The square root of 545994216 is about 23366.5191245936. The cubic root of 545994216 is about 817.3273164424.

The spelling of 545994216 in words is "five hundred forty-five million, nine hundred ninety-four thousand, two hundred sixteen".