545161788 has 18 divisors (see below), whose sum is σ = 1378047944. Its totient is φ = 181720584.

The previous prime is 545161769. The next prime is 545161853. The reversal of 545161788 is 887161545.

545161788 is a `hidden beast` number, since 54 + 516 + 1 + 7 + 88 = 666.

It is a tau number, because it is divible by the number of its divisors (18).

It is a congruent number.

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 5 ways as a sum of consecutive naturals, for example, 7571656 + ... + 7571727.

Almost surely, 2^545161788 is an apocalyptic number.

It is an amenable number.

545161788 is an abundant number, since it is smaller than the sum of its proper divisors (832886156).

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

545161788 is a wasteful number, since it uses less digits than its factorization.

545161788 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15143393 (or 15143388 counting only the distinct ones).

The product of its digits is 268800, while the sum is 45.

The square root of 545161788 is about 23348.6999209806. The cubic root of 545161788 is about 816.9117368258.

The spelling of 545161788 in words is "five hundred forty-five million, one hundred sixty-one thousand, seven hundred eighty-eight".