1660404143000 has 32 divisors (see below), whose sum is σ = 3885345696960. Its totient is φ = 664161656800.

The previous prime is 1660404142973. The next prime is 1660404143023. The reversal of 1660404143000 is 3414040661.

It is a super-3 number, since 3×1660404143000³ (a number of 38 digits) contains 333 as substring.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 830201072 + ... + 830203071.

It is an arithmetic number, because the mean of its divisors is an integer number (121417053030).

Almost surely, 2^{1660404143000} is an apocalyptic number.

1660404143000 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1660404143000 is an abundant number, since it is smaller than the sum of its proper divisors (2224941553960).

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

1660404143000 is a wasteful number, since it uses less digits than its factorization.

1660404143000 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1660404164 (or 1660404150 counting only the distinct ones).

The product of its (nonzero) digits is 6912, while the sum is 29.

Adding to 1660404143000 its reverse (3414040661), we get a palindrome (1663818183661).

The spelling of 1660404143000 in words is "one trillion, six hundred sixty billion, four hundred four million, one hundred forty-three thousand".