142202643552 has 144 divisors (see below), whose sum is σ = 419619367440. Its totient is φ = 47372262912.

The previous prime is 142202643547. The next prime is 142202643563. The reversal of 142202643552 is 255346202241.

142202643552 is a `hidden beast` number, since 1 + 4 + 2 + 2 + 0 + 2 + 643 + 5 + 5 + 2 = 666.

It is a tau number, because it is divible by the number of its divisors (144).

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 15772998 + ... + 15782010.

It is an arithmetic number, because the mean of its divisors is an integer number (2914023385).

Almost surely, 2^142202643552 is an apocalyptic number.

142202643552 is a gapful number since it is divisible by the number (12) 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 142202643552, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (209809683720).

142202643552 is an abundant number, since it is smaller than the sum of its proper divisors (277416723888).

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

142202643552 is an equidigital number, since it uses as much as digits as its factorization.

142202643552 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11067 (or 11047 counting only the distinct ones).

The product of its (nonzero) digits is 115200, while the sum is 36.

Adding to 142202643552 its reverse (255346202241), we get a palindrome (397548845793).

The spelling of 142202643552 in words is "one hundred forty-two billion, two hundred two million, six hundred forty-three thousand, five hundred fifty-two".