667464545 has 16 divisors (see below), whose sum is σ = 879569280. Its totient is φ = 482208000.

The previous prime is 667464541. The next prime is 667464583. The reversal of 667464545 is 545464766.

667464545 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 667464545 - 2² = 667464541 is a prime.

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 667464545.

It is not an unprimeable number, because it can be changed into a prime (667464541) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 31880 + ... + 48489.

It is an arithmetic number, because the mean of its divisors is an integer number (54973080).

Almost surely, 2^667464545 is an apocalyptic number.

It is an amenable number.

667464545 is a deficient number, since it is larger than the sum of its proper divisors (212104735).

667464545 is a wasteful number, since it uses less digits than its factorization.

667464545 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 80536.

The product of its digits is 2419200, while the sum is 47.

The square root of 667464545 is about 25835.3352020058. The cubic root of 667464545 is about 873.9288312588.

The spelling of 667464545 in words is "six hundred sixty-seven million, four hundred sixty-four thousand, five hundred forty-five".