660843106000 has 480 divisors, whose sum is σ = 2037619584000. Its totient is φ = 204978816000.

The previous prime is 660843105991. The next prime is 660843106009. The reversal of 660843106000 is 601348066.

660843106000 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an interprime number because it is at equal distance from previous prime (660843105991) and next prime (660843106009).

It is a super-2 number, since 2×660843106000² (a number of 24 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (660843106009) by changing a digit.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 240392626 + ... + 240395374.

It is an arithmetic number, because the mean of its divisors is an integer number (4245040800).

Almost surely, 2^660843106000 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 660843106000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1018809792000).

660843106000 is an abundant number, since it is smaller than the sum of its proper divisors (1376776478000).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

660843106000 is a wasteful number, since it uses less digits than its factorization.

660843106000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3020 (or 2997 counting only the distinct ones).

The product of its (nonzero) digits is 20736, while the sum is 34.

The spelling of 660843106000 in words is "six hundred sixty billion, eight hundred forty-three million, one hundred six thousand".