142823915520 has 640 divisors, whose sum is σ = 541165363200. Its totient is φ = 31708938240.

The previous prime is 142823915513. The next prime is 142823915537. The reversal of 142823915520 is 25519328241.

It is a tau number, because it is divible by the number of its divisors (640).

It is a congruent number.

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, 1124597697 + ... + 1124597823.

It is an arithmetic number, because the mean of its divisors is an integer number (845570880).

Almost surely, 2^142823915520 is an apocalyptic number.

142823915520 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 142823915520, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (270582681600).

142823915520 is an abundant number, since it is smaller than the sum of its proper divisors (398341447680).

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

142823915520 is an equidigital number, since it uses as much as digits as its factorization.

142823915520 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 197 (or 161 counting only the distinct ones).

The product of its (nonzero) digits is 172800, while the sum is 42.

The spelling of 142823915520 in words is "one hundred forty-two billion, eight hundred twenty-three million, nine hundred fifteen thousand, five hundred twenty".