660164003 has 8 divisors (see below), whose sum is σ = 681770880. Its totient is φ = 638576640.

The previous prime is 660163991. The next prime is 660164047. The reversal of 660164003 is 300461066.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 660164003 - 2¹⁸ = 659901859 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (660160003) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 100001 + ... + 106397.

It is an arithmetic number, because the mean of its divisors is an integer number (85221360).

Almost surely, 2^660164003 is an apocalyptic number.

660164003 is a deficient number, since it is larger than the sum of its proper divisors (21606877).

660164003 is a wasteful number, since it uses less digits than its factorization.

660164003 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9757.

The product of its (nonzero) digits is 2592, while the sum is 26.

The square root of 660164003 is about 25693.6568631248. The cubic root of 660164003 is about 870.7308796347.

The spelling of 660164003 in words is "six hundred sixty million, one hundred sixty-four thousand, three".