660163067 has 4 divisors (see below), whose sum is σ = 660263040. Its totient is φ = 660063096.

The previous prime is 660163061. The next prime is 660163079. The reversal of 660163067 is 760361066.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-660163067 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (660163061) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 39323 + ... + 53540.

It is an arithmetic number, because the mean of its divisors is an integer number (165065760).

Almost surely, 2^660163067 is an apocalyptic number.

660163067 is a deficient number, since it is larger than the sum of its proper divisors (99973).

660163067 is an equidigital number, since it uses as much as digits as its factorization.

660163067 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 99972.

The product of its (nonzero) digits is 27216, while the sum is 35.

The square root of 660163067 is about 25693.6386485060. The cubic root of 660163067 is about 870.7304681186.

The spelling of 660163067 in words is "six hundred sixty million, one hundred sixty-three thousand, sixty-seven".