142003646652 has 96 divisors (see below), whose sum is σ = 389141061120. Its totient is φ = 39452555520.

The previous prime is 142003646623. The next prime is 142003646677. The reversal of 142003646652 is 256646300241.

It is a self number, because there is not a number n which added to its sum of digits gives 142003646652.

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, 5615974 + ... + 5641202.

It is an arithmetic number, because the mean of its divisors is an integer number (4053552720).

Almost surely, 2^142003646652 is an apocalyptic number.

142003646652 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 142003646652, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (194570530560).

142003646652 is an abundant number, since it is smaller than the sum of its proper divisors (247137414468).

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

142003646652 is a wasteful number, since it uses less digits than its factorization.

142003646652 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 27091 (or 27089 counting only the distinct ones).

The product of its (nonzero) digits is 207360, while the sum is 39.

Adding to 142003646652 its reverse (256646300241), we get a palindrome (398649946893).

The spelling of 142003646652 in words is "one hundred forty-two billion, three million, six hundred forty-six thousand, six hundred fifty-two".