664110545 has 16 divisors (see below), whose sum is σ = 912193920. Its totient is φ = 454683264.

The previous prime is 664110529. The next prime is 664110569. The reversal of 664110545 is 545011466.

664110545 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 664110545 - 2⁴ = 664110529 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 8669 + ... + 37461.

It is an arithmetic number, because the mean of its divisors is an integer number (57012120).

Almost surely, 2^664110545 is an apocalyptic number.

It is an amenable number.

664110545 is a deficient number, since it is larger than the sum of its proper divisors (248083375).

664110545 is a wasteful number, since it uses less digits than its factorization.

664110545 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 29464.

The product of its (nonzero) digits is 14400, while the sum is 32.

The square root of 664110545 is about 25770.3423531780. The cubic root of 664110545 is about 872.4625457714.

The spelling of 664110545 in words is "six hundred sixty-four million, one hundred ten thousand, five hundred forty-five".