143640668080 has 160 divisors (see below), whose sum is σ = 411223680000. Its totient is φ = 45438852096.

The previous prime is 143640668077. The next prime is 143640668117. The reversal of 143640668080 is 80866046341.

It is a self number, because there is not a number n which added to its sum of digits gives 143640668080.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 25469901 + ... + 25475539.

It is an arithmetic number, because the mean of its divisors is an integer number (2570148000).

Almost surely, 2^143640668080 is an apocalyptic number.

143640668080 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 143640668080, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (205611840000).

143640668080 is an abundant number, since it is smaller than the sum of its proper divisors (267583011920).

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

143640668080 is a wasteful number, since it uses less digits than its factorization.

143640668080 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9171 (or 9165 counting only the distinct ones).

The product of its (nonzero) digits is 663552, while the sum is 46.

The spelling of 143640668080 in words is "one hundred forty-three billion, six hundred forty million, six hundred sixty-eight thousand, eighty".