142188503550 has 96 divisors (see below), whose sum is σ = 387325566720. Its totient is φ = 34359494400.

The previous prime is 142188503549. The next prime is 142188503579. The reversal of 142188503550 is 55305881241.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 1019031 + ... + 1150130.

It is an arithmetic number, because the mean of its divisors is an integer number (4034641320).

Almost surely, 2^142188503550 is an apocalyptic number.

142188503550 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

142188503550 is an abundant number, since it is smaller than the sum of its proper divisors (245137063170).

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

142188503550 is a wasteful number, since it uses less digits than its factorization.

142188503550 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2169218 (or 2169213 counting only the distinct ones).

The product of its (nonzero) digits is 192000, while the sum is 42.

The spelling of 142188503550 in words is "one hundred forty-two billion, one hundred eighty-eight million, five hundred three thousand, five hundred fifty".