142321163445500 has 192 divisors, whose sum is σ = 339076490188800. Its totient is φ = 51868879545600.

The previous prime is 142321163445491. The next prime is 142321163445541. The reversal of 142321163445500 is 5544361123241.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 1821345431 + ... + 1821423569.

It is an arithmetic number, because the mean of its divisors is an integer number (1766023386400).

Almost surely, 2^{142321163445500} is an apocalyptic number.

142321163445500 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 142321163445500, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (169538245094400).

142321163445500 is an abundant number, since it is smaller than the sum of its proper divisors (196755326743300).

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

142321163445500 is a wasteful number, since it uses less digits than its factorization.

142321163445500 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 81797 (or 81785 counting only the distinct ones).

The product of its (nonzero) digits is 345600, while the sum is 41.

The spelling of 142321163445500 in words is "one hundred forty-two trillion, three hundred twenty-one billion, one hundred sixty-three million, four hundred forty-five thousand, five hundred".