660610545 has 16 divisors (see below), whose sum is σ = 1207973760. Its totient is φ = 301993344.

The previous prime is 660610537. The next prime is 660610571. The reversal of 660610545 is 545016066.

660610545 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 660610545 - 2³ = 660610537 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, 3145660 + ... + 3145869.

It is an arithmetic number, because the mean of its divisors is an integer number (75498360).

Almost surely, 2^660610545 is an apocalyptic number.

It is an amenable number.

660610545 is a deficient number, since it is larger than the sum of its proper divisors (547363215).

660610545 is a wasteful number, since it uses less digits than its factorization.

660610545 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6291544.

The product of its (nonzero) digits is 21600, while the sum is 33.

The square root of 660610545 is about 25702.3451264666. The cubic root of 660610545 is about 870.9271592828.

The spelling of 660610545 in words is "six hundred sixty million, six hundred ten thousand, five hundred forty-five".