545166816 has 24 divisors (see below), whose sum is σ = 1431063144. Its totient is φ = 181722240.

The previous prime is 545166803. The next prime is 545166833. The reversal of 545166816 is 618661545.

It is a tau number, because it is divible by the number of its divisors (24).

It is a hoax number, since the sum of its digits (42) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2839315 + ... + 2839506.

It is an arithmetic number, because the mean of its divisors is an integer number (59627631).

Almost surely, 2^545166816 is an apocalyptic number.

It is an amenable number.

545166816 is an abundant number, since it is smaller than the sum of its proper divisors (885896328).

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

545166816 is a wasteful number, since it uses less digits than its factorization.

545166816 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5678834 (or 5678826 counting only the distinct ones).

The product of its digits is 172800, while the sum is 42.

The square root of 545166816 is about 23348.8075926802. The cubic root of 545166816 is about 816.9142482635.

The spelling of 545166816 in words is "five hundred forty-five million, one hundred sixty-six thousand, eight hundred sixteen".