545464665 has 32 divisors (see below), whose sum is σ = 1011882240. Its totient is φ = 278264448.

The previous prime is 545464663. The next prime is 545464679. The reversal of 545464665 is 566464545.

545464665 is a `hidden beast` number, since 5 + 4 + 546 + 46 + 65 = 666.

It is not a de Polignac number, because 545464665 - 2¹ = 545464663 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 545464665.

It is not an unprimeable number, because it can be changed into a prime (545464663) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 84732 + ... + 90941.

It is an arithmetic number, because the mean of its divisors is an integer number (31621320).

Almost surely, 2^545464665 is an apocalyptic number.

It is an amenable number.

545464665 is a deficient number, since it is larger than the sum of its proper divisors (466417575).

545464665 is a wasteful number, since it uses less digits than its factorization.

545464665 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 175710 (or 175704 counting only the distinct ones).

The product of its digits is 1728000, while the sum is 45.

The square root of 545464665 is about 23355.1849703658. The cubic root of 545464665 is about 817.0629934345.

The spelling of 545464665 in words is "five hundred forty-five million, four hundred sixty-four thousand, six hundred sixty-five".