142202155620 has 192 divisors, whose sum is σ = 488035860480. Its totient is φ = 30211564032.

The previous prime is 142202155607. The next prime is 142202155621. The reversal of 142202155620 is 26551202241.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is not an unprimeable number, because it can be changed into a prime (142202155621) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 254829 + ... + 591051.

It is an arithmetic number, because the mean of its divisors is an integer number (2541853440).

Almost surely, 2^142202155620 is an apocalyptic number.

142202155620 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 142202155620, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (244017930240).

142202155620 is an abundant number, since it is smaller than the sum of its proper divisors (345833704860).

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

142202155620 is a wasteful number, since it uses less digits than its factorization.

142202155620 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 336314 (or 336312 counting only the distinct ones).

The product of its (nonzero) digits is 9600, while the sum is 30.

Adding to 142202155620 its reverse (26551202241), we get a palindrome (168753357861).

The spelling of 142202155620 in words is "one hundred forty-two billion, two hundred two million, one hundred fifty-five thousand, six hundred twenty".