2143071645020 has 24 divisors (see below), whose sum is σ = 4504053750000. Its totient is φ = 856542316032.

The previous prime is 2143071644981. The next prime is 2143071645049. The reversal of 2143071645020 is 205461703412.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 42870770 + ... + 42920729.

It is an arithmetic number, because the mean of its divisors is an integer number (187668906250).

Almost surely, 2^{2143071645020} is an apocalyptic number.

2143071645020 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2143071645020 is an abundant number, since it is smaller than the sum of its proper divisors (2360982104980).

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

2143071645020 is a wasteful number, since it uses less digits than its factorization.

2143071645020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 85792757 (or 85792755 counting only the distinct ones).

The product of its (nonzero) digits is 40320, while the sum is 35.

The spelling of 2143071645020 in words is "two trillion, one hundred forty-three billion, seventy-one million, six hundred forty-five thousand, twenty".