142661032500 has 240 divisors, whose sum is σ = 478042877312. Its totient is φ = 32425920000.

The previous prime is 142661032453. The next prime is 142661032561. The reversal of 142661032500 is 5230166241.

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

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 79 ways as a sum of consecutive naturals, for example, 9494994 + ... + 9510006.

Almost surely, 2^142661032500 is an apocalyptic number.

142661032500 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 142661032500, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (239021438656).

142661032500 is an abundant number, since it is smaller than the sum of its proper divisors (335381844812).

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

142661032500 is a wasteful number, since it uses less digits than its factorization.

142661032500 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15228 (or 15211 counting only the distinct ones).

The product of its (nonzero) digits is 8640, while the sum is 30.

Adding to 142661032500 its reverse (5230166241), we get a palindrome (147891198741).

The spelling of 142661032500 in words is "one hundred forty-two billion, six hundred sixty-one million, thirty-two thousand, five hundred".