660557012006 has 8 divisors (see below), whose sum is σ = 991738744200. Its totient is φ = 329977430608.

The previous prime is 660557011931. The next prime is 660557012021. The reversal of 660557012006 is 600210755066.

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

It is a super-2 number, since 2×660557012006² (a number of 24 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 150534956 + ... + 150539343.

It is an arithmetic number, because the mean of its divisors is an integer number (123967343025).

Almost surely, 2^660557012006 is an apocalyptic number.

660557012006 is a deficient number, since it is larger than the sum of its proper divisors (331181732194).

660557012006 is a wasteful number, since it uses less digits than its factorization.

660557012006 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 301075398.

The product of its (nonzero) digits is 75600, while the sum is 38.

The spelling of 660557012006 in words is "six hundred sixty billion, five hundred fifty-seven million, twelve thousand, six".